I received six rocks in my purchase order all as expected, and I will use mineral box again

Black Iron Ore with Calcite Inclusions – Rare Hunan Mineral Specimen
Weight: ~10.76 oz (305 g)
Size: 2.6 × 2.6 × 2.1 in
Origin: Hunan, China
Description:
This rare mineral specimen from Hunan is an impressive black iron ore with striking calcite inclusions. The dark, almost matte appearance of the iron ore is beautifully contrasted by glistening calcite crystals that form on its surface. The combination of these two minerals results in a visually dramatic piece that is both raw and refined. Iron ore is valued for its natural, earthy energy and geological significance, while the calcite inclusions add a touch of brightness and natural elegance. This specimen is ideal for collectors who appreciate the rugged beauty of raw minerals and enjoy the interplay of contrasting textures. Its robust structure and detailed crystal formations make it perfect for display in a home or office, or as part of a specialized mineral collection. Beyond its aesthetic appeal, this specimen also holds metaphysical properties, believed to provide grounding energy and balance. It is a unique, conversation-starting piece that embodies both natural strength and delicate mineral beauty.
| Mineral | Calcite |
|---|---|
| Locality | Hunan Province, China |
| Crystal system | Hexagonal |
| Chemical formula | CaCO₃ |
| Dimensions | 6.6 cm × 6.6 cm × 5.3 cm |
| Weight | 305 g |
| Color | Black |
| Size | Small Cabinet (2–4 inches / 5–10 cm) |
| Species | Calcite |
| Condition | No damage on display faces |
This specimen from Hunan, China is a dense mass of black iron ore carrying bright calcite inclusions — the dark, near-matte ore against the pale carbonate is what gives the piece its contrast.
The ore is an iron oxide (Fe2O3), showing the metallic to submetallic lustre typical of primary iron oxide formation. The calcite (CaCO3) crystallises in the trigonal system at a Mohs hardness of 3, with rhombohedral cleavage and the strong double refraction the species is known for; it formed in the ore’s voids and fractures as a later carbonate phase.
The interest here is the pairing: a heavy, opaque, industrial-looking ore hosting a bright, well-formed carbonate. It reads as both a geological teaching piece and a display specimen.
Calcite is soft and cleaves easily, so handle the piece by the ore body rather than the calcite, and keep it away from acids — calcite reacts with even dilute hydrochloric acid.
Calcite is a carbonate mineral prized by collectors for its exceptional color range, with several world-class Chinese localities.
Yes. Every specimen is a single, one-of-a-kind piece, and the photographs show the exact item you will receive — never a stock photo.
Yes — specimens like this form naturally. As is standard in the trade, some pieces are gently cleaned or trimmed; we photograph the actual specimen and describe its origin and condition conservatively.
Orders ship worldwide with fully insured, tracked delivery, carefully packed to protect fragile crystals. A display base is included.
Yes — there is a 14-day return window.
I received six rocks in my purchase order all as expected, and I will use mineral box again

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fluorita muy hermosa de gran tamaño, vendedora muy atenta siempre en comunicacion, el envio llego antes de la fecha programada, empacado con mucho cuidado, gracias

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Beautiful authentic stone. Very fast shipping. Excellent 👍

Lovely piece from a like seller with great communication. Indian quartz, a charming cluster. Very pleased

Reçu très rapidement. Très beaux cristaux.

Clear, in perfect condition, which ia rare by itself, and here also location makes it a real collection best tier item. Thank you 🥹

Another stunning mineral from Maggie. It has a CHARACTER which is not so often to get. I'm in love with every single piece from Maggie and this one is no exception.

It's FENOMENAL. I'm so happy I decided to buy it. Cristals are in perfecf shape, big... I'm speachless. I think it's absolutely one of my best specimens. Thank you!

I'm obsessed with this fluorite. It's like the universe frozen in the box... Amazing. Can't stop looking at it 🥰

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Beautiful. Secured perfectly, so all these little needles can now feed my eyes 🥰

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Absolutely beautiful. I thought it would be smaller, so nice surprise 😇
