swap_horiz Neptunite 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

Zoisite

Zoisite is a calcium aluminum hydroxyl sorosilicate mineral belonging to the epidote group. It naturally occurs in a ran...

Collector Green Tanzania Silicate

8.1 Great

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

Topazolite Garnet

A yellow to greenish-yellow andradite garnet variety found in the Alps of Italy, Switzerland, and Russia, prized by coll...

Collector Rare Yellow Garnet

6.9 Fair

11

Idocrase

Calcium aluminum silicate mineral also called vesuvianite, named after Mount Vesuvius where it was first scientifically...

Collector Silicate Green Yellow Vesuvianite

6.7 Fair

12

Hambergite

Rare beryllium borate mineral described in 1883 by W.C. Brøgger and named after Swedish geographer Axel Hamberg; gem-qua...

Collector Rare Colorless Borate

6.7 Fair

13

Willemite

Zinc silicate mineral named after King William I of the Netherlands; notable for its intense green fluorescence under UV...

Zinc Collector Green Fluorescent

6.6 Fair

14

Iris Agate

A banded chalcedony with extremely thin, tightly-spaced layers that diffract transmitted light into full spectral rainbo...

Collector Rare Chalcedony Rainbow Diffraction

6.6 Fair

15

Sillimanite

Aluminum silicate mineral forming one of three polymorphs with andalusite and kyanite; gem-quality material occurs in Sr...

Blue Collector Rare Silicate

6.4 Fair

16

Scapolite Cat's Eye

A relatively rare chatoyant gemstone from the scapolite mineral group, with notable gem-quality examples sourced from My...

Collector Yellow Phenomenon Silicate

6.4 Fair

17

Herderite

Calcium beryllium phosphate mineral forming colorless to pale yellow crystals; rare gem-quality specimens occur in Minas...

Collector Rare Crystal Phosphate

6.3 Fair

18

Neptunite Cat's Eye

A sodium lithium iron titanium silicate mineral found primarily in San Benito County, California, USA, occasionally face...

Collector Rare Black Red Silicate

5.5 Mediocre

19

Pumpellyite

A calcium magnesium aluminum silicate mineral named after American geologist Raphael Pumpelly, occurring in low-grade me...

Collector Green Rare Metamorphic

5.1 Mediocre

20

Ekanite

Rare radioactive calcium thorium silicate mineral first described in 1955 from Sri Lanka and named after F.L.D. Ekanayak...

Collector Green Rare Radioactive

4.2 Poor