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Roscherite & Eosphorite

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AMM1125553

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Description
Locality: 
Black Mountain Quarry, Rumford, Oxford County, Maine, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.4 × 1.2 cm
Description

Fine specimen with rounded dark brown roscherite crystal aggregates in association with light brown eosphorite crystals.

Comes with an original hand-written Curt SEGELER label.

The specimen comes from the collection of Dr. G. Jung.

Short information: This is the first of three auctions in July before a summer break. 

Mineral Data
What's on the rock

Roscherite

Formula: 
Ca2Mn2+5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Crystal System: 
Monoclinic Tabular crystals or platy aggregates
Hardness: 
4.5 - 0.0
Streak: 
White
Type Locality: 
Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Eosphorite

Formula: 
(Mn2+,Fe2+)Al(PO4)(OH)2·H2O
Strunz: 
8.DD.20
Crystal System: 
Orthorhombic
Hardness: 
5.0
Streak: 
White
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Provenance

Dr Gerhard Jung Collection

Tue, 2025-09-23 14:24 -- admin
Some History
Name: 
Dr. Gerhard Jung
Dates: 
19.03.1925- 
14.02.2018
Type: 
Collector/Collection
Specialisms: 
Phosphates of Hagendorf, Systematic Minerals
About

Dr. Gerhard Jung stands is renowned for his expertise in Hagendorf specimens and honoured by having the mineral Jungite named after him...

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Accepted payment methods: PayPal, bank transfer.

Money back guarantee is valid until 14 days after receiving the payment. The refund will be initiated immediately upon receiving the minerals back. Due to the return time, there may be a delay in the refund. 

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