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0 item @ $0.00  

Pyromorphite

#30028

Pyromorphite

#30028
Availability
Sold
Size
2.5 x 2.5 x 2 cm - Thumbnail 
Formula
Pb5(PO4)3Cl (RRUFF)
Locality
Roughton Gill, Caldbeck Fells, Cumbria, England
Tagged
phosphate

Lustrous green Pyromorphite crystals in nice group.

Pyromorphite

Formula
Pb5(PO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Crystals short to long prismatic, acicular, often hoppered terminations, rarely tabular to equant; radiating to branching groups, tapering to a point. Commonly rounded, globular, reniform, botryoidal. 
Cleavage
On {1011}, interrupted 
Luster
Resinous to subadamantine 
Color
Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless 
Streak
White 
Geological Setting
A secondary mineral in the oxidized zone of lead deposits 
Class
Hexagonal, 6/m - Dipyramidal 
Fracture
Uneven to subconchoidal 
Hardness
3.5–4 

Data courtesy of Webmineral.

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