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Rhodonite With Biotite & Calcite

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FCM605863

Rhodonite With Biotite & Calcite

ex F. Krantz collection
Fluorescent

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 6 × 3.2 cm
Description

This is a classic Franklin NJ combination piece with pinkish-red crystalline rhodonite with contrasting black biotite and white calcite.  The calcite is brightly fluorescent under SW UV.  An old German label is included.

Mineral Data
What's on the rock

Rhodonite

Formula: 
MnSiO3
Strunz: 
9.DK.05
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.5
Streak: 
White
Type Locality: 
Kaiser Franz Mine (König Wilhelm Mine), Schävenholz (Schebenholz; Schäbenholz), Elbingerode, Harz, Saxony-Anhalt, Germany

Biotite

Group Parent: 
Mica Group

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Seller Information

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