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Hancockite

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Hancockite

Type Locality

Description Tabs

Description
Locality: 
Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.8 × 1.7 cm
Largest Crystal: 
0.07cm
Description

Hancockite, the rare lead-bearing term of the epidote group, is long known at Franklin, which remains the best world locality. This thumbnail shows very nice, free-standing cherry red hancockite sprays in vugs lined by sharp, yellowish axinite-(Mn) crystals, and black cleavages of hendricksite in matrix. Franklin is the type locality for all three species.

Mineral Data
What's on the rock

Hancockite

Variety Of: 

Epidote-(Pb)

Formula: 
{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05
Hardness: 
6.0 - 7.0
Formula: 
{CaPb}{Al2(Fe3+,Mn3+)}(Si2O7)(SiO4)O(OH)
Hardness: 
6.0 - 7.0
Streak: 
White
Type Locality: 
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

We offer rare minerals to systematic collectors worldwide, doing our best to ensure accurate identification and provide adequate information and pictures.

Through extensive field search and contacts with trusted sources, we manage to provide the best in newly found species and classic type-locality minerals. Should your item prove to be different we offer an immediate refund of purchase.

Items may be returned within 15 days of receipt, please note that return costs are at customer's expense. We will issue refund as soon as we receive the item in unaltered condition.

Preferred payment is via Paypal, please follow instructions at ceckout and make payment to: [email protected] . If you don't have a Paypal account you can as well pay with your credit card following instructions for non-Paypal users.

Alternatively we accept bank transfer to: Roberto Bracco - bank: Intesa Sanpaolo - via Paleocapa 134/R - 17100 Savona, Italy.

IBAN code: IT79P0306910600100000067863 SWIFT code: BCITITMM

Cash and checks not accepted.

To contact us and ask questions about items on sale, please e-mail to: [email protected]  - phone: +39.3381058295. Returned items should be sent to: Roberto Bracco, piazza Monticello 12/2, 17100 Savona, Italy