Tourmaline Crystals on matrix - Height: 6.35 cm - Width: 5.71 cm- 178 g
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 | €225 | |
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 | €183 | |
| €173 | |
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Natural tourmaline crystal aggregate in matrix from Minas Gerais, Brazil ( Cruzeiro / São José da Safira ), weighing 178 g with dimensions 6.35 × 5.71 × 4.10 cm and Mohs hardness 7–7.5, displaying green to blue‑green colouring.
AI-assisted summary
Description from the seller
Features of the Specimen:
Main mineral: Tourmaline
Presentation: Aggregate of natural crystals in a matrix
Color: Green, blue-green, and teal
Crystal structure: Prismatic, with longitudinal striations
Origin: Minas Gerais, Brazil – Cruzeiro / São José da Safira
Height: 6.35 cm
Width: 5.71 cm
Depth: 4.10 cm
Weight: 178 g (890 carats)
Tourmaline hardness: 7–7.5 on the Mohs scale
Condition: Natural mineral specimen, with irregularities inherent to crystal formation
Crystal Beauty and Mineralogical Particularities:
Tourmaline belongs to a complex group of silicate minerals, known for its extraordinary color variety and crystallographic properties.
One of the most fascinating characteristics of this specimen is the presence of crystals with different hues along the same structure, revealing transitions between deep greens and bluish tones.
These color variations may result from differences in chemical composition and the conditions of formation during crystal growth.
The larger crystals show well-developed prismatic faces, with vertical striations characteristic of tourmaline. Around them, numerous smaller crystals are distributed through the clear matrix, creating a mineralogical composition rich in textures and contrasts.
The white matrix particularly enhances the depth of color and the geometry of the crystals, contributing to the piece’s visual impact.
Features of the Specimen:
Main mineral: Tourmaline
Presentation: Aggregate of natural crystals in a matrix
Color: Green, blue-green, and teal
Crystal structure: Prismatic, with longitudinal striations
Origin: Minas Gerais, Brazil – Cruzeiro / São José da Safira
Height: 6.35 cm
Width: 5.71 cm
Depth: 4.10 cm
Weight: 178 g (890 carats)
Tourmaline hardness: 7–7.5 on the Mohs scale
Condition: Natural mineral specimen, with irregularities inherent to crystal formation
Crystal Beauty and Mineralogical Particularities:
Tourmaline belongs to a complex group of silicate minerals, known for its extraordinary color variety and crystallographic properties.
One of the most fascinating characteristics of this specimen is the presence of crystals with different hues along the same structure, revealing transitions between deep greens and bluish tones.
These color variations may result from differences in chemical composition and the conditions of formation during crystal growth.
The larger crystals show well-developed prismatic faces, with vertical striations characteristic of tourmaline. Around them, numerous smaller crystals are distributed through the clear matrix, creating a mineralogical composition rich in textures and contrasts.
The white matrix particularly enhances the depth of color and the geometry of the crystals, contributing to the piece’s visual impact.
Details
Main mineral
Tourmaline
Mineral form
Crystals on matrix
Weight
178 g
Origin (region/city)
Minas Gerais
Country of origin
Brazil
Height
6.35 cm
Width
5.71 cm
Depth
4.1 cm
