Your Shopping Cart is empty.

${{ (item.variation.media ? item.variation.media.alt_translations : item.product.cover_media.alt_translations) | translateModel }}$ ${{ (item.variation.media ? item.variation.media.alt_translations : item.product.cover_media.alt_translations) | translateModel }}$

{{ childProduct.title_translations | translateModel }}

{{ getChildVariationShorthand(childProduct.child_variation) }}

{{ getSelectedItemDetail(selectedChildProduct, item).childProductName }} x {{ selectedChildProduct.quantity || 1 }}

{{ getSelectedItemDetail(selectedChildProduct, item).childVariationName }}

{{item.quantity}}x {{ item.unit_point }} Point

Remove

${{addonItem.product.cover_media.alt_translations | translateModel}}$

{{addonItem.quantity}}x {{ mainConfig.merchantData.base_currency.alternate_symbol + "0" }}

Remove

Hollandite

1 products

Sort by

Newest to Oldest
Oldest to Newest
Price: High to Low
Price: Low to High

48 Items per page

24 Items per page
48 Items per page
72 Items per page

Some natural minerals are beautiful not because of bright colour, but because of their quiet depth and unusual structure. With its dark grey to black appearance, metallic lustre and subtle natural textures, Hollandite appeals to those drawn to uncommon minerals, darker tones and distinctive geological specimens.

Hollandite is a natural manganese oxide mineral. Under the current mineralogical definition, it is the barium–manganese end-member of the coronadite group, with the ideal formula Ba(Mn⁴⁺₆Mn³⁺₂)O₁₆. It is typically silvery grey, greyish black or black, opaque, and has a metallic lustre with a Mohs hardness of approximately 4–6. Hollandite belongs to the Coronadite Group within the Hollandite Supergroup.

The name Hollandite honours Sir Thomas Henry Holland, a British geologist and former Director of the Geological Survey of India. Its current type locality is the Gowari Wadhona Mine in Chhindwara District, Madhya Pradesh, India. In 2012, the International Mineralogical Association revised the nomenclature of the Hollandite Supergroup, redefining the mineralogical boundaries of Hollandite and related species.

One of Hollandite’s most distinctive qualities is its dark colour, metallic lustre and fine natural structure. Specimens may occur as compact masses, fine crystal aggregates or fibrous and radiating structures, and may also occur together with other manganese oxides or iron minerals. Because Hollandite can be visually very similar to related manganese oxides such as Cryptomelane, reliable mineral identification may require chemical or crystallographic analysis rather than appearance alone.

In crystal culture, Hollandite is commonly associated with stability, protection, inner strength, boundaries and composure. It suits those drawn to understated dark minerals, quiet spaces and uncommon specimens with a strong collector’s character.

Ideal For

Stability・Protection・Inner Strength・Boundaries・Composure

FAQ

Q: What makes Hollandite distinctive?
Hollandite is distinguished by its dark grey to black colour, metallic lustre and fine structures formed by manganese oxides. Some specimens show fine crystals, fibrous or radiating textures, while others appear as dense mineral aggregates.

Q: Who is Hollandite suitable for?
It suits collectors and mineral enthusiasts drawn to dark, understated and less commonly encountered minerals. It can also work well as a distinctive specimen for a desk, display cabinet or living space where a quiet, grounded visual presence is desired.

Q: How should I choose Hollandite?
Focus on the natural structure, lustre, crystal or aggregate form, and mineral associations. For a more detailed mineral character, look for specimens with visible fibrous, radiating or fine-crystal structures. For collectors who prefer raw geological specimens, natural matrix and distinctive crystal aggregation can add interest. Because Hollandite can closely resemble other manganese oxides, reliable identification is particularly important for higher-value specimens.

Q: Why is Hollandite sometimes black and sometimes silvery grey?
Hollandite naturally ranges from silvery grey and greyish black to black. Surface lustre, crystal aggregation and differences in weathering or oxidation can influence how dark or reflective an individual specimen appears.

Brazil Amethyst Quartz with Hollandite Pendant & Necklace

ADD TO CART

Brazil Amethyst Quartz with Hollandite Pendant & Necklace

HK$1,168.00