129

Epidote

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17g 10h 43m 19s
13/11/2026 16:08:00
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€ 50,00 / 100,00
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Description

Epidote

Cm 6X5X6
Ca₂(Al₂,Fe)(SiO₄)(Si₂O₇)O(OH) — sorosilicate, monoclinic system
More information
Typically found in the Alps (Aosta Valley, Austria), Norway, and Mexico, it is a typical
low- to medium-grade metamorphic mineral (green schists, skarn) formed by the alteration of plagioclase and feldspar minerals. Hardness 6–7 on the Mohs scale, density 3.4–3.5 g/cm³, characteristic pistachio green color, striated prismatic habit.

Occasionally used in jewelry for its transparent gem-quality varieties; very common as a collector’s mineral due to its distinctive color; an important petrological indicator of metamorphic conditions.
Time auction 1251

Historia Naturalis

mon 26 October - fri 13 November 2026
The description sheets do not always indicate the state of conservation of the goods, we invite you to always request the condition report before making your offers
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