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Seamanite Triploidite & Rhodochrosite

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PJM142215

Seamanite Triploidite & Rhodochrosite

Description Tabs

Description
Locality: 
Iron Monarch Open Cut, Iron Knob, Middleback Range, Eyre Peninsula, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 3.2 × 3 cm
Description

Pale pinkish crystals of seamanite on rhodochrosite in cavities whilst yellowish triploidite crystals in small clusters are scattered over dark rhodochrosite

Mineral Data
What's on the rock

Seamanite

Formula: 
Mn2+3[B(OH)4](PO4)(OH)2
Strunz: 
6.AC.65
Crystal System: 
Orthorhombic Small acicular crystals.
Hardness: 
4.0
Streak: 
White
Type Locality: 
Chicagon mine, Menominee iron range, Iron Co., Michigan, USA

Triploidite

Formula: 
(Mn2+,Fe2+)2(PO4)(OH)
Strunz: 
8.BB.15
Hardness: 
4.5 - 5.0
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania
Earthstones Australia

Seller Information

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Seller's terms and conditions

All goods must be paid for prior to shipping, all bids are binding.