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Mineralpedia Details for Rhodizite

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Rhodizite

Rhodizite

Named after the Greek rhodizein, meaning “rose-colored” or “to be rose-colored” as its presence in a flame will turn the flame red. Rhodizite is a rare mineral found as an accessory mineral that formed late-stage in granite pegmatites. It has localities in Russia, Madagascar, England, and the United States only. Rhodizite is highly piezoelectric, produces a charge in response to pressure, and pyroelectric, produces a charge in response to heating.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/rhodizite.pdf

Formula
KAl4Be5B11O28 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse 
Cleavage
Indistinct, Indistinct, Indistinct 
Luster
Vitreous - Adamantine 
Color
colorless, grayish, yellow, yellowish white, white 
Streak
white 
Class
Isometric - Hextetrahedral 
Fracture
Conchoidal 
Hardness
8.5 
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Mindat
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Rhodizite from Antandrokomby pegmatite, Manandona Valley, Antananarivo prov., Madagascar

Rhodizite
            from Antandrokomby pegmatite, Manandona Valley, Antananarivo prov., Madagascar

One 6mm yellowish crystal.

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