Natural Color Blue Tourmaline Lapidary Rough

Code: tgrm383
This natural color tourmaline crystal weighs 27.5 carats
Blue-Green Tourmaline Mineral Specimen Dimensions: 2" x 0.65" x 0.55"
Mined in Minas Gerais, Brazil
Price: $435.00
This rare quality blue-green tourmaline crystal specimen is naturally terminated with faces and terminations in excellent condition. It has not been heated or treated in any way. There is another intergrown blue-green tourmaline and some light purple lepidolite mica at the base. The largest tourmaline crystal is internally flawless in the upper 60% of the crystal and it would yield 4 carats of fine medium blue-green tourmaline flawless faceted gemstones! See an additional view of this blue-green tourmaline crystal with lepidolite. See also a close-up view of this 1.8 inch long gem grade blue-green tourmaline crystal.

Code: tblm163
Natural color tourmaline weighs 10.60 carats
Multi-Color Tourmaline Size: 1" long x 0.3" x 0.25" (26mm x 7mm x 6mm)
Mined in Brazil
Price: $53.00
This tourmaline crystal appears black but actually shows dark colors when held to a light as shown. It has dark brown color at its base then purplish color then golden-green hues and finally blue-green colors near the naturally terminated tip! These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has has rounded trigonal form. This tourmaline crystal is very lightly included with some completely clean areas. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $5/carat = $53.

Code: tblm162
This natural color tourmaline weighs 4.20 carats
Blue and Green Tourmaline Size: 0.7" long x 0.25" x 0.15" (18mm x 6mm x 3.5mm)
Mined in Brazil
Price: $63.00
This small tourmaline crystal appears almost black but actually shows medium dark colors when held to a light as shown. It has purplish color at its base then golden-green hues and finally blue-green colors near the naturally terminated tip. These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has a relatively thin flat shape. Over 70% of this tourmaline crystal is completely clean and the reminder is only very lightly included. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $15/carat = $63.

This unique item is sold.

Code: tblm161
This natural color tourmaline weighs 10.55 carats
Blue and Green Tourmaline Size: 0.5" long x 0.4" x 0.3" (13.5mm x 10mm x 8mm)
Mined in Brazil
Price: $84.40
This natural indicolite tourmaline specimen appears almost black but actually shows medium dark blue-green colors when held to a light as shown. It is a crystal section that is bi-color with blue color at one end that grades into green color at the opposite end (100% natural colors - it is unheated and untreated). This tourmaline crystal section has rounded trigonal form. The lightly included tourmaline is transparent and would yield a lightly included cabochon gem weighing 5 carats. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $8/carat = $84.40

Code: tblm164
This natural color tourmaline weighs 13.95 carats
Blue and Green Tourmaline Size: 1.1" long x 0.4" x 0.2" (29mm x 9mm x 5.5mm)
Mined in Brazil
Price: $111.60
This small tourmaline crystal appears almost black but actually shows medium dark colors when held to a light as shown. It has dark brown color at its base then purplish color then golden-green hues and finally blue-green colors near the naturally terminated tip. These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has a relatively thin flat shape. It is very lightly included with some large completely clean areas. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $8/carat = $111.60

Code: tblm165
This natural color tourmaline weighs 7.81 carats
Tourmaline Size: 1.2" long x 0.2" x 0.2" (31mm x 5mm x 5mm)
Mined in Brazil
Price: $132.77
This slender tourmaline crystal has light to medium blue color in the lower half then blue-green hues in the upper half and it becomes pink near the naturally terminated tip! These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has rounded trigonal prismatic form. It is lightly included in the upper half and the lower portion is gem-grade. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal is $17/carat = $132.77

Code: tblm168
This natural color tourmaline weighs 11.82 carats
Tourmaline Size: 1.7" long x 0.2" x 0.2" (43mm x 5mm x 5mm)
Mined in Brazil
Price: $283.68
This slender blue tourmaline is a crystal section with light to medium blue color at one end grading into greenish blue at the opposite end. These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has rounded trigonal prismatic form. It is transparent throughout with large eye clean areas separated by some lightly include areas, and it would yield 3 carats of faceted eye clean gems! Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $24/carat = $283.68

This unique item is sold.

Code: tblm169-e
This natural color tourmaline weighs 22.43 carats
Tourmaline Size: 2" long x 0.3" x 0.25" (51.5mm x 7.5mm x 6mm)
Mined in Brazil
Price: $476.20
This slender blue tourmaline is a crystal section with medium blue 100% natural color - it is unheated and untreated. This tourmaline crystal has rounded trigonal prismatic form. It is transparent and has a large gem grade area at one end that would yield a single 2.5 carat faceted gem with very faintly eye visible inclusions.

Code: tblm170
This natural color tourmaline weighs 21.15 carats
Tourmaline Size: 1.7" long x 0.35" x 0.3" (42.5mm x 9mm x 7mm)
Mined in Brazil
Price: $317.25
This natural tourmaline crystal has medium blue color and it becomes deep purple-pink at the naturally terminated tip! The photo at left is back-lit to better show the beautiful purple-pink natural color at the tip. See another view of this natural color blue tourmaline crystal. These are all 100% natural colors - it is unheated and untreated. This tourmaline crystal has a somewhat flattened trigonal prismatic form. See a side view of this natural color blue tourmaline crystal. This lightly included tourmaline crystal is semi-transparent to transparent. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal is $20/carat = $317.25

Code: tblm155
This natural color tourmaline crystal weighs 106.65 carats (21.33 gr)
Blue Tourmaline Crystal Dimensions: 26mm x 24mm x 18mm tall
Mined in Brazil
Price: $213.30
This natural color indicolite tourmaline is a naturally terminated crystal with a rounded triangular form. It appears almost black, however when held near a light its dark greenish blue natural color perpendicular to the c-axis is easily visible as shown at left. This natural color tourmaline is black along the c-axis. It is semi-transparent, with a greenish-blue body and a thin green color zone right at the natural termination. The prismatic faces and the termination are in mostly good condition with some abraded edges. It makes a very nice specimen of natural dark indicolite tourmaline just as it is, although this blue tourmaline crystal would also yield over 20 carats of lightly included cabochon gems. See another view photo of this natural blue tourmaline crystal. See also another view of this natural color blue tourmaline crystal held near a light. Our mineralminers.com special offer price for this indicolite tourmaline specimen is $2/carat = $213.30

Code: tblm151
This natural color tourmaline crystal weighs 9.15 carats (1.83 grams)
Tourmaline Crystal Dimensions: 0.75" long x 0.25" x 0.25" (19mm x 7mm x 7mm)
This natural indicolite tourmaline crystal was discovered at Itinga, Brazil
Price: $219.60
This natural color tourmaline crystal is 0.75 inches long (19mm long) with medium dark blue-green color. This naturally terminated tourmaline crystal is about 70% eye clean, and it will yield a 2 carat eye clean blue-green tourmaline gemstone.

Code: tblm158
This natural color tourmaline crystal weighs 14.62 carats
Indicolite Tourmaline Crystal measures 1.4" long x 0.2" x 0.2" (34mm x 6mm x 6mm)
Mined in Brazil
Price: $292.40
This natural indicolite tourmaline specimen is a crystal section with fine medium-dark slightly greenish-blue 100% natural color - it is unheated and untreated. This slender prismatic tourmaline crystal has rounded trigonal form. The lightly included tourmaline is transparent and has a gem facet grade area that would yield 3 carats of fine quality eye clean gems! Our mineralminers.com special offer price for this natural color indicolite tourmaline crystal section is $20/carat = $292.40

Code: tblm166
This natural color tourmaline weighs 17.15 carats
Tourmaline Size: 1.4" long x 0.25" x 0.25" (36mm x 7.5mm x 6mm)
Mined in Brazil
Price: $617.40
This slender blue tourmaline mineral specimen has light to medium blue color and it becomes pink at the naturally terminated tip! These are all 100% natural colors - it is unheated and untreated. There is a small amount of clay minerals attached at the tip also. This blue tourmaline crystal has rounded trigonal prismatic form. It is lightly included in the upper half and the lower portion is gem-grade where it has a gem facet grade area that would yield a 2.5 carat fine color eye clean faceted gem! See also an opposite side view of this natural color blue tourmaline crystal. Our mineralminers.com miner's price for this natural color indicolite tourmaline crystal section is $36/carat = $617.40

Code: tblm160
This natural color tourmaline crystal weighs 37.38 carats
Indicolite Tourmaline Rough Dimensions 0.75" long x 0.6" x 0.5" (19mm x 15mm x 13.5mm)
Mined in Brazil
Price: $691.53
This natural color indicolite tourmaline is a crystal section with rounded triangular form. It appears almost black, however when held near a light as shown at left its fine dark blue natural color perpendicular to the c-axis is easily visible. This natural color tourmaline is black along the c-axis. It is actually bi-color with fine dark greenish-blue 100% natural color at one end that grades into fine dark blue natural color towards the opposite end. This beautiful indicolite tourmaline is unheated and untreated. This lightly included tourmaline would yield a single 20 carat high-domed cabochon gem of very fine quality, or a 15 carat faceted gem with faintly visible natural inclusions! See an additional view of this natural color indicolite tourmaline. See also another view of this natural color indicolite tourmaline held near a light. Our mineralminers.com special offer price for this natural color indicolite tourmaline crystal section is $18.50/carat = $691.53

Code: tblm146
This natural color tourmaline crystal weighs 155.5 carats (31.1 grams)
Indicolite Tourmaline Crystal Dimensions: 1.7" wide x 1.2" tall x 0.75" thick
This natural blue-green tourmaline crystal was discovered at Itinga, Brazil
Price: $435.40
This natural indicolite tourmaline crystal is 1.7 inches wide with beautiful blue-green natural color, and it is naturally terminated. See a photo of the opposite side of this blue-green tourmaline crystal. See also a bottom view photo of this natural blue-green tourmaline crystal.

Code: albm184
Natural pegmatite matrix specimen weighing 1.2 pounds
Pegmatite Specimen Dimensions: 4.7" long x 3.7" x 1.9"
Found in Minas Gerais, Brazil
Price: $168.25
The matrix of this natural pegmatite decorator specimen is albite feldspar. There is a pink and blue tourmaline crystal embedded in the upper surface of the albite. The tourmaline is partially replaced by lepidolite.

Code: tmcm209
Natural color tourmaline weighs 23.6 carats
Tourmaline Crystal Dimensions: 2.1" long x 0.3" x 0.25"
(52.5mm x 8mm x 6mm)
Mined in Minas Gerais, Brazil
Price: $448.40
This natural color tourmaline crystal section is transparent with three distinct natural color zones inside; it is blue at one end then pink in the middle, and then green at the opposite end. It is a crystal section with facet grade transparency in the green and pink zones, with some faint natural inclusions in the blue portion. This tri-color tourmaline crystal has a relatively thin flat shape. See another view of this tri-color tourmaline crystal. See also a different side view of this tri-color tourmaline crystal. Our mineralminers.com special offer price for this tourmaline mineral specimen with 100% natural color is $19/carat = $448.40

Code: tmcm206
Natural color tourmaline weighs 47.22 carats
Tourmaline Crystal Dimensions: 1.1" long x 0.55" x 0.5"
(28mm x 14mm x 13.5mm)
Mined in Minas Gerais, Brazil
Price: $755.52
This naturally terminated crystal is transparent with three distinct natural color zones inside; it is medium-dark blue at the naturally terminated tip then medium-dark yellow-green in the middle, and then becomes medium-dark pure green at the base. Away from the light source this dark tourmaline crystal appears almost black, but when held to a light the beautiful colors are visible as shown. The terminations are in good overall condition with some naturally abraded areas. There are some faint inclusions along one side, and there is a large facet grade area inside as well. This natural color tourmaline crystal will yield a single lightly included tri-color faceted gem weighing over 20 carats, or it could be faceted into a single VS clarity faceted gem from the beautiful medium-dark blue area (indicolite tourmaline) weighing over 7 carats! See a side view of this gem grade tourmaline crystal. See also an opposite side view of this multi-color tourmaline crystal. Our mineralminers.com special offer price for this tourmaline crystal specimen with 100% natural color is $16/carat = $755.52

Code: tblf128
This natural color blue tourmaline crystal weighs 19.95 carats
Blue Tourmaline Facet Rough Dimensions: 23mm x 14.5mm x 6mm deep
Mined in Brazil
Price: $558.60
This natural color indicolite tourmaline specimen is a partially terminated crystal section with a relatively thin flat shape. It has medium-dark to dark blue natural color when viewed perpendicular to the c-axis as shown at left. This dark blue tourmaline looks almost black until held up to a light as shown. Along the c-axis it is dark. There are some faint natural inclusions throughout most of its length, and it has a completely eye clean area at one end that would yield a one carat gem. The remainder of this blue tourmaline crystal section would yield a very nice 4 carat blue tourmaline faceted gem that would face up eye clean with some faint inclusions only visible under close inspection. Both gems would have rich dark blue color! See also an end view photo of this natural blue tourmaline facet grade rough. See also another view of this natural color blue tourmaline crystal. Our mineralminers.com special offer price for this gem-grade piece of natural color indicolite tourmaline facet rough is $28/carat = $558.60

Code: tblf126
This natural color Blue Tourmaline facet rough weighs 48.15 carats
Blue Tourmaline Facet Rough Dimensions: 27mm x 15.5mm x 12mm deep
Mined in Afghanistan
Price: $6259.50
This natural color indicolite tourmaline crystal section has very rich blue color hues. Along the c-axis it is dark. It is flawless inside and will yield a flawless rectangular faceted gemstone weighing 25 carats with beautiful medium-dark to dark natural blue color! See also an end view photo of this natural blue tourmaline facet rough. Our mineralminers.com special offer price for this gem-grade piece of natural color indicolite tourmaline facet rough is $130/carat = $6259.50