Dumortierite in Quartz | Druzy Crystal | Rough Top Triangle | Brazil | QU555
Dumortierite in Quartz | Druzy Crystal | Rough Top Triangle | Brazil | QU555
Dumortierite in Quartz is a natural inclusion specimen in which dense concentrations of dumortierite — a fibrous aluminum borosilicate mineral — become permanently encapsulated within a quartz host during crystal growth deep within metamorphic and pegmatite environments. Brazil is the world's foremost source for high-quality dumortierite in quartz, producing material with a richness and density of blue patterning that consistently surpasses material from other localities. What sets exceptional Brazilian specimens apart is the dramatic contrast between the opaque, intensely colored dumortierite fibers and the surrounding quartz matrix — ranging from bold, graphic clusters to intricate, almost painterly compositions that are entirely unique to each stone.
This 15 x 10 x 3mm triangle weighs 3 carats and presents in a druzy crystal form — the top surface retains its natural rough crystal structure, displaying the raw, sparkling quartz terminations as they formed in the earth, while the back has been cut and polished flat for direct setting compatibility in both bezel and prong applications. The notably shallow profile of 3mm depth gives this stone an almost tablet-like character, keeping the design footprint low and wearable while the full 15 x 10mm face delivers a bold, graphic presence. The triangle silhouette amplifies that graphic quality further — three clean edges framing a raw, crystalline surface threaded with dumortierite patterning creates a tension between geometric precision and natural rawness that is exceptionally well suited to contemporary and mixed-media jewelry aesthetics. At 3 carats in a stone of this face size, the shallow depth makes it an ideal candidate for low-profile bezel work where a dramatic face-up appearance is desired without the added height of a deeper stone.
DETAILS
Origin: Brazil
Species: Quartz
Variety: Dumortierite in Quartz (Dumortierite Quartz)
Cut: Druzy, Flat Back — Triangle
Size: 15 x 10 x 3mm
Weight: 3 ct
Sold: Individually
Treatment: None
Hardness: 7 (Mohs)
Refractive Index: 1.544 – 1.553
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