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Cavansite With Calcite On Heulandite

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SHW581058

Cavansite With Calcite On Heulandite

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Description
Locality: 
Wagholi Quarry, Pune, Maharashtra, India
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3 × 4 cm
Weight: 
30.00gr
Description

Dark blue rosette of cavansite with sugar like tiny crystals of calcite grown over the matrix of fine Heulandite. Very attractive and very rare combination. Unwanted portion by the side of the specimen is cut using machine.

Wagholi, Pune - India is the only one location in the whole world, where best quality cavansite & pentagonite is found. Due to expansion of localities around, mines are almost on the verge of closing down.

Mineral Data
What's on the rock

Cavansite

Formula: 
Ca(VO)Si4O10·4H2O
Strunz: 
9.EA.50
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Type Locality: 
Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA

Calcite

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

Heulandite

Synonym Of: 

Heulandite-Ba

Formula: 
(Ba,Ca,K,Na,Sr)5Al9Si27O72·22H2O
Strunz: 
9.GE.05
Hardness: 
3.5

Heulandite-Ca

Formula: 
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.5 - 4.0

Heulandite-K

Formula: 
(K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5

Heulandite-Na

Formula: 
(Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5

Heulandite-Sr

Formula: 
(Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5
Hardness: 
3 - 3.5
Colour: 
White
Streak: 
White

Buy Now price

$50
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Shipping Information

Postage Area Price
Europe
$5
USA
$5
Rest of the world
$5
View sellers shipping policy

We use Registered Post service, cheapest way of shipping from India. Charges would be USD5 for first item and USD2 for every additional item. It would take 15 to 20 days delivery period depending upon country. For fast shipping, we can use EMS Speed Post or FedEx. Please contact us for shipping charges as they are variable for every country. 

 

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Payment options: offline, paypal_wpp, paypal_wps

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We accept payment by PayPal only.

 

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