Mangano Tantalite-(Mn) on White Albite

$1,600.00$1,800.00 (-11%)

In stock

Product Information:

Weight 282 Grams
Specimen Dimensions 6 x 6 x 5.8 cm
Crystal Dimensions 2.5 x 2.2 x 1.5 cm
Locality Chappa Darrah Mine, Darai Paech, Nuristan Province, Afghanistan
Crystal Diaphaneity Translucent

 

Description:

Single well-formed tabular crystal of Tantalite-(Mn) from the Chappa Darrah, Nuristan Afghanistan. The Tantalite crystal measuring to 2.5 x 2.2 x 1.5 cm with a very dark deep red, almost black color, and displays of maroon red to some areas, to get that kind of piece with no damage or repair from such locality is very uncommon.

 

The Tantalite Mineral:

Tantalite is the name assigned to a group of related minerals containing oxygen, tantalum, and a metal such as Manganese or Iron. Generally, mangan-dominant members are more rich in nature. Many specimens called Tantalite belong to the tapiolite or columbite series. Columbite is the niobium-rich member, and Tantalite is the tantalum-rich member. It is named after its tantalum content, and, together with Columbite, are the rarest minerals containing the rare element tantalum. 

The name Tantalite has been defamed by the IMA (International Mineralogical Association), with the more specific designations of Tantalite-(Fe) (Ferrotantalite), and Tantalite-(Mn) (Mangano Tantalite) being used for this minerals. Ferrotantalite is always dark and opaque, while Mangano Tantalite is usually reddish-brown and may manifest transparency. An even rarer member of this series is Tantalite-(Mg), a magnesium-rich member.

 

Tantalite General Information

Varieties

Mangano Tantalite

Chemical Formula

(Fe, Mn) (Ta, Nb)2 O6

Mohs Hardness

6 – 6.5

Crystal System

Orthorhombic

Color

Red-brown, brown, black

Transparency

Transparent

Lustre

Submetallic

 

Mangano Tantalite: Mangano Tantalite is a manganese-rich variety of Tantalite. It is formed when manganese replaces iron. Manganotantalite is an intense red transparent material that is suitable for cutting into magnificent faceted gems.

 

Manganotantalite General Information

Other Names

Tantalite – (Mn)

Chemical Formula

MnTa2 O6

Mohs Hardness

6 – 6.5

Crystal System

Orthorhombic

Color

Scarlet-red to dark red

Transparency

Transparent

Lustre

Vitreous

 

Shipping

Most of the time we are use DHL Express for our worldwide shipments. it may take 8 to 10 days to deliver for international shipments. Once you placed an order on our website we will provide you the tracking number of the parcel which you can track it Here. We also have another option of DHL Global which is normally taking around a month to deliver the parcel. Another option for international shipments is FedEx.

Returns

Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items: Gifts

There are certain situations where only partial refunds are granted. Any item not in its original condition, is damaged or missing parts for reasons not due to our error Any item that is returned more than 14 days after delivery

Refunds

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected].

Exchanges

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at [email protected] and send your item to: Office # 01, Nasrullah Building, Peshawar Gemstones Market, Namak Mandi Peshawar, KP, Pakistan. Some of the Minerals Crystal and Specimens are only posted on our Instagram page. You can visit our company page on Instagram Here!

Want to see our massive collection of minerals specimens and crystals Click Here!

Additional information

Gem Color

Orange, Red

Gem Type

Crystals and Specimens

Locality

Afghanistan

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