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Opal

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ADR925790

Opal

Classic Locality

Description Tabs

Description
Locality: 
San Valentín Quarry, Sancti Spiritu, La Unión, Murcia, Spain
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 5 cm
Weight: 
250.00gr
Description

This variety of opal with yellow tones, which has a waxy and vitreous shine, has been found in the open pit mine "San Valentín", this amorphous variety of hydrated silica is usually highly valued in gemology. San valentin open pit is a lead-zinc-iron mine. Deposit is sub-volcanic, hydrothermal, late Tertiary replacement of limestone.

This is a stratiform deposit with a paragenesis of magnetite - greenalite - sulfides - carbonates.

Mineral Data
What's on the rock

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for visiting our shop.

- Pieces will be sent 48/72 hours after the payment is received.

- All of our shipments, will be done by secured mail & Track Number.

- Shipping fees does not include insurances, import duties, taxes or charges. Check with your country´s custom border. In case you want to ensure you order contact with us.

- Every mineral will be nicely packed and labelled.

- Multiple purchases will have discount on shippings if it is possible due to the weight of the pieces.

- Colour may vary due to the camera sensor.