Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Hibschite Pectolite & Phlogopite

Views:
Watches:
LMB517474

Hibschite Pectolite & Phlogopite

Share this by email

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 1 cm
Largest Crystal: 
0.11cm
Weight: 
14.00gr
Description

Hibschite (an uncommon variety of grossular) on pectolite with dark green phlogopite (not analyzed). A sample of the hibschite was XRD and came back as “garnet group” – probably “hibschite” -  based on morphology (stepped growth octahedrons) and environment (marble xenolith at MSH).

The octrahedra are about 1.1 mm, tip to tip. FOV is 2.3 x 3.5 mm in the first pair of photos, 4 x 5.3 mm in the second pair. You will need 15-30X to view the crystals as in these photos.

There are also several small, but good water clear pectolite crystals. Most – but not all – have somewhat fibrous terminations. The dark green phlogopite crystals in the center span about 1.2 cm. The hibschite is just above the phlogopite.

Single item shipping weight 3.1oz. If you are planning to hold an "open box" so as to reduce postage costs by combining items from a future auction, please note that USPS postage rates recently changed significantly.

Outside the USA, the stated postage and packing rate applies up to a total weight of 8 oz (225 g). It is no longer possible to save on postage by using a padded envelope.

Within the USA, there is a nominal increase of $0.20 for each additional ounce; above 13 oz, I will use Priority Mail. Up to 16 oz the rate is $8.50 (including packing).

Please see my "Shipping Policy" for details

Mineral Data
What's on the rock

Hibschite

Variety Of: 

Grossular

Formula: 
Ca3Al2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Formula: 
Ca3Al2(SiO4)3-x(OH)4x
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5
Streak: 
White
Type Locality: 
Mariánská Skála (Mariánská hora; Marienberg), Ústí nad Labem (Aussig), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic

Pectolite

Formula: 
NaCa2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Sano, Mori, Mt. Baldo, Lagarina Valley, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy

Phlogopite

Formula: 
KMg3(AlSi3O10)(OH,F)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 3.0
Streak: 
White
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.

Item Toolbox