Dioptase Crystals on matrix - Height: 5 cm - Width: 3.8 cm- 38 g - (1)
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Dioptase meteorite specimen with well-formed prism crystals on a matrix from Congo, measuring 5 × 3.5 × 1.4 cm and weighing 38 g.
AI-assisted summary
Description from the seller
1. Overview
Exceptional specimen of natural dioptase in matrix, with well-formed prismatic crystals of intense emerald green color. Collectors piece with high visual impact, where the transparency and luster of the crystals generate a vibrant and deep effect.
2. Measurements and weight
Weight: 38 grams
Dimensions: 5 x 3.5 x 1.4 cm
3. Mineralogical identification
Mineral: Dioptase
Crystal system: Trigonal
4. Chemical formula
CuSiO₃ · H₂O (hydrated copper silicate)
5. Hardness and density
Hardness: 5 (Mohs scale)
Density: ~3.2–3.4 g/cm³
6. Visual and geological reading
Well-defined prismatic crystals on matrix, with sharp terminations and high vitreous luster. The intense green color comes from the presence of copper, responsible for its extraordinary chromatic saturation.
7. History of the mineral
Dioptase is a mineral historically confused with emerald due to its color, but its rarity and formation place it among the most appreciated collectible minerals.
8. Formation and origin
Forms in oxidation zones of copper deposits, under very specific conditions, which explains the difficulty of finding specimens with well-developed crystals like this.
9. Authenticity and tests
Observation of coherent crystal habit
Natural coloration due to copper
Characteristic vitreous luster
Not certified, but verified through our own gemological analysis
10. Condition
Very good overall condition, with crystals well preserved and minimal alteration in the matrix.
11. Provenance
Origin: Congo (classic copper dioptase quality zones)
12. Market, rarity, and investment
Dioptase is a relatively uncommon mineral in crystallized quality.
Specimens with defined crystals, intense color, and good size are increasingly scarce on the market.
Authentic and well-formed specimens reinforce collector interest and their potential for appreciation.
13. Gemological curiosities
Often confused with emerald due to color
Coloration comes directly from copper, not inclusions
A relatively fragile mineral despite its solid appearance
Knowing these differences helps avoid common market errors.
14. Human note
Each crystal is the result of extremely slow geological processes, combined with human work in complex extraction environments.
15. Conclusion
A collection piece with powerful aesthetics, clear authenticity, and superior positioning within the mineralogical market.
Choosing an authentic piece is not just a purchase; it is a conscious decision that combines beauty, discernment, and real value.
1. Overview
Exceptional specimen of natural dioptase in matrix, with well-formed prismatic crystals of intense emerald green color. Collectors piece with high visual impact, where the transparency and luster of the crystals generate a vibrant and deep effect.
2. Measurements and weight
Weight: 38 grams
Dimensions: 5 x 3.5 x 1.4 cm
3. Mineralogical identification
Mineral: Dioptase
Crystal system: Trigonal
4. Chemical formula
CuSiO₃ · H₂O (hydrated copper silicate)
5. Hardness and density
Hardness: 5 (Mohs scale)
Density: ~3.2–3.4 g/cm³
6. Visual and geological reading
Well-defined prismatic crystals on matrix, with sharp terminations and high vitreous luster. The intense green color comes from the presence of copper, responsible for its extraordinary chromatic saturation.
7. History of the mineral
Dioptase is a mineral historically confused with emerald due to its color, but its rarity and formation place it among the most appreciated collectible minerals.
8. Formation and origin
Forms in oxidation zones of copper deposits, under very specific conditions, which explains the difficulty of finding specimens with well-developed crystals like this.
9. Authenticity and tests
Observation of coherent crystal habit
Natural coloration due to copper
Characteristic vitreous luster
Not certified, but verified through our own gemological analysis
10. Condition
Very good overall condition, with crystals well preserved and minimal alteration in the matrix.
11. Provenance
Origin: Congo (classic copper dioptase quality zones)
12. Market, rarity, and investment
Dioptase is a relatively uncommon mineral in crystallized quality.
Specimens with defined crystals, intense color, and good size are increasingly scarce on the market.
Authentic and well-formed specimens reinforce collector interest and their potential for appreciation.
13. Gemological curiosities
Often confused with emerald due to color
Coloration comes directly from copper, not inclusions
A relatively fragile mineral despite its solid appearance
Knowing these differences helps avoid common market errors.
14. Human note
Each crystal is the result of extremely slow geological processes, combined with human work in complex extraction environments.
15. Conclusion
A collection piece with powerful aesthetics, clear authenticity, and superior positioning within the mineralogical market.
Choosing an authentic piece is not just a purchase; it is a conscious decision that combines beauty, discernment, and real value.
Details
Number of objects
1
Main mineral
Dioptase
Mineral form
Crystals on matrix
Weight
38 g
Country of origin
Congo
Height
5 cm
Width
3.8 cm
Depth
1.4 cm
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