Mineral data - Crocoite

Name: Krokoit (DE)
Crocoite (EN)

CNMNC

Mineralienatlas URL: https://www.mineralienatlas.de/?m=2062

Chemical formula: PbCrO₄

Empirical formula: not specified

Status: accepted mineral

Hardness by Mohs: 2.5 - 3

Fracture: not specified

Tenacity: not specified

Instability: +++ HNO₃, NaOH, + Säuren, Licht!, heißes H₂O!

Color (daylight): orange, rot, gelb

Streak: orangegelb

Lustre: Diamantglanz

UV short wave (254): not specified

UV mid wave (320): not specified

UV long wave (365): not specified

RI α/ω/n: 2.29

RI β: 2.36 Li

RI γ/ε: 2.66

Birefringence: 0.37

Crystal system: monoklin

Class (H-M): 2/m

Space group: P21/n (14)

Z: 4

a (Å): 7.127

b (Å): 7.438

c (Å): 6.799

α °: 90°

β °: 102.43

γ °: 90°

V (Å³): 351.971

Strunz classification: 7.FA.20

Lapis classification: VI/F.01-030

Hölzel classification: 7.FA.360

Dana classification: not specified

Heys-Index: not specified

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