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Bobdownsite

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BCK123725

Bobdownsite

New Discovery

Description Tabs

Description
Locality: 
Tip Top Mine, Fourmile, Custer County, South Dakota, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 1 cm
Description

A small matrix specimen with a couple vugs containing numerous water clear bobdownsite crystals with bermanite and leucophosphite. Confirmed material.

Mineral Data
What's on the rock

Bobdownsite

Formula: 
Ca9Mg(PO4)6(PO3F)
Group Parent: 
Whitlockite Group
Strunz: 
8.AC.45
Hardness: 
5.0 - 0.0
Streak: 
White
Type Locality: 
Big Fish River, Dawson Mining District, Yukon Territory, Canada

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