Epidote (silicates): Klinotsiozit
Diagnostic Card.
On the picture. Crystals of clinozoisite Amborompottsi (Madagascar).
Ca 2 Al 3 O OH SiO 4 Si 2 O 7
Crystal system monoclinic
6.5 Hardness
Specific gravity 3.2
Cleavage is perfect
fracture uneven
Color colorless, yellow, green, pink
Color white powder
Gloss glass
Presented crystals, elongated along the axis of the second order. The crystals are also or is short-rounded, and often there are bean-shaped granular aggregates. There may be colorless or colored in white, light gray, pink and greenish-yellow color. Easily decomposed by cleavage at the main pinacoid. Gloss glass, at the bottom of the aspirant to the pearlescent and resin.
Diagnostic features.
It defies acids; melts in the flame of a candle.
Origin.
It occurs (together with chlorite) in crystalline schists, contact-metamorphic rocks and in igneous, which is the result of plagioclase changes.
Place of Birth.
Discovered in Sonora (Mexico), California (USA), Madagascar, Austria and Switzerland. Beautiful pink crystals clinozoisite found in Chiapernotto in Val d'Allos (Piedmont region).
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