swap_horiz Powellite Alternatives

1

Andradite Garnet

Andradite is a calcium-iron nesosilicate mineral species belonging to the garnet group. It forms in contact metamorphic...

Collector Rare High Dispersion Garnet

8.1 Great

2

Indicolite

Indicolite is the name commonly applied to blue or blue-green specimens of elbaite, a mineral in the tourmaline group. I...

Blue Collector Vibrant Rare

7.8 Good

3

Pezzottaite

Pezzottaite is a rare mineral species recognized for its distinct raspberry-red to pink coloration, often utilized as a...

Collector Rare Madagascar Beryl

7.5 Good

4

Purple Sapphire

Purple sapphire is a colored variety of the mineral corundum, distinct from ruby by its specific hue. The gemstone achie...

Collector Jewelry Rare Purple

7.5 Good

5

Euclase

Euclase is a rare beryllium aluminum silicate mineral with the chemical formula BeAlSiO₄(OH). Its name derives from the...

Collector Rare Brazil Blue Green

7.1 Good

6

Phenakite

Phenakite, also spelled phenacite, is a beryllium silicate mineral with the chemical formula Be2SiO4. It commonly forms...

Collector Rare Colorless Silicate

7.0 Good

7

Brazilianite

Brazilianite is a sodium aluminium phosphate mineral with the chemical formula NaAl3(PO4)2(OH)4. It was recognized as a...

Collector Rare Brazil Phosphate

7.0 Good

8

Blue Amber

Blue amber is an uncommon variety of fossilized tree resin known for producing a blue or blue-green appearance under ult...

Organic Collector Rare Dominican Republic

7.0 Good

9

Topazolite Garnet

Topazolite is a yellow to greenish-yellow variety of andradite, a calcium-iron garnet. It is known from Alpine localitie...

Collector Rare Yellow Garnet

6.9 Fair

10

Hambergite

Hambergite is a rare beryllium borate mineral first described in 1883 by the Norwegian mineralogist W. C. Brøgger. It wa...

Collector Rare Colorless Borate

6.7 Fair

11

Legrandite

Legrandite is a rare hydrated zinc arsenate mineral with the chemical formula Zn2AsO4(OH)·H2O and a monoclinic crystal s...

Collector Yellow Mexico Very Rare

6.7 Fair

12

Adamite

Adamite is a zinc arsenate hydroxide mineral that commonly forms yellow, yellow-green, or pale green crystals and crusts...

Collector Crystal Fluorescent Yellow Green

6.6 Fair

13

Willemite

Willemite is a zinc silicate mineral with the chemical formula Zn2SiO4 and a minor source of zinc ore. It occurs in seve...

Zinc Collector Green Fluorescent

6.6 Fair

14

Iris Agate

Iris agate is a finely banded variety of agate, a form of chalcedony, whose microscopic layers can produce a rainbow eff...

Collector Rare Chalcedony Rainbow Diffraction

6.6 Fair

15

Wulfenite

Wulfenite is a lead molybdate mineral with the chemical formula PbMoO4. It commonly occurs as thin, tabular tetragonal c...

Collector Mexico Crystal Orange Red

6.5 Fair

16

Scheelite

Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten and is also...

Collector Crystal Fluorescent Tungstate

6.5 Fair

17

Sillimanite

Sillimanite is an aluminium silicate mineral with the chemical formula Al2SiO5, and one of three polymorphs that also in...

Blue Collector Rare Silicate

6.4 Fair

18

Neptunite

Neptunite is an approved silicate mineral with the formula KNa2LiFe2+2Ti2Si8O24. It commonly forms black to dark-red mon...

Collector California Rare Black Red

6.4 Fair

19

Scapolite Cat's Eye

Scapolite cat's eye is a chatoyant gemstone variety belonging to the scapolite mineral group. Its narrow, moving band of...

Collector Yellow Phenomenon Silicate

6.4 Fair

20

Herderite

Herderite is a calcium beryllium phosphate mineral in the apatite group, with the formula CaBe(PO4)(F,OH). It crystalliz...

Collector Rare Crystal Phosphate

6.3 Fair