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Graphite & Chondrodite

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LMB176922

Graphite & Chondrodite

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Description
Locality: 
Lime Crest Quarry, Sparta Township, Sussex County, New Jersey, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.7 × 3.5 cm
Description

Fairly well formed (but “wrinkly”) graphite xls to about 8-9 mm embedded in chondrodite. Both minerals are common in the Franklin Marble, but this is a very unusual example of “togetherness”.

Note: The current rule of thumb among Franklin collectors is that “if it glows, it’s norbergite, else chondrodite”. This stuff doesn’t glow a whit (at least not with my light). But chondrodite vs norbergite has been controversial in this area, and it is possible that both minerals are present (as zones in the grains).

Weight 3.2 oz. Single item (small box) hipping weight 5.2 oz. Outside the USA, items with a combined weight < 8 oz could be shipped for the same cost as this item alone. Within the USA, this item could fit in a small Priority Mail box ($5.80), but it is cheaper to use First Class up to about 13 oz.

Mineral Data
What's on the rock

Graphite

Formula: 
C
Strunz: 
1.CB.05a
Crystal System: 
Hexagonal
Hardness: 
1.0 - 2.0

Chondrodite

Formula: 
(Mg,Fe2+)5(SiO4)2(F,OH)2
Strunz: 
9.AF.45
Crystal System: 
Monoclinic
Hardness: 
6.0 - 6.5
Type Locality: 
Skräbböle quarry, Pargas (Parainen), Southwestern Finland Region, Finland
LMB minerals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

In addition to the standard terms and conditions, please note the following. Almost all IDs are visual. While in most cases the ID is obvious, there may be cases where it is not. If you are doubtful about a particular ID, please ask for more information. Or do not bid! Similarly, if you are not sure that the specimen meets your criteria, do not bid. I have tdone the best I can with the photos. Nevertheless, if you are not happy with a specimen for any reason, I will refund the bid price – but not the shipping costs (unless the fault is clearly mine) – if the specimen is returned. This policy applies even if analysis of the specimen shows that my ID was incorrect. When in doubt, ask - or don’t bid. Note that most crystals at MSH and Varennes are micros - even if on large specimens. Please pay attention to the stated sizes. Any customs duties, fees etc. are the responsibility of the buyer.

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