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Köttigite & Parasymplesite

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FNW37283

Köttigite & Parasymplesite

Rare Mineral

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.2 × 5.7 × 1.8 cm
Description

Very rare specimen of prismatic koettigite-parasymplesite micro crystals on limonite matrix.

Colleted in 1970´s. A visual feast under the microscope.

Mineral Data
What's on the rock

Köttigite

Formula: 
Zn3(AsO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic Prismatic crystals or crusts
Hardness: 
2.5 - 3.0
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Parasymplesite

Formula: 
Fe2+3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
2.0
Type Locality: 
Kiura mine (Shin-Kiura mine; Kiura emery mine), Saiki City, Oita prefecture, Kyushu Region, Japan
Fine Minerals World