The Rockhound dictionary
1,043 minerals, gem varieties, rocks, fossils, meteorites, organic gems, and lapidary materials, with how to tell them apart. Shared by everyone who uses Rockhound: pick one of these names when you add a specimen, and its properties fill themselves in.
119 entries fit.
A
- AchroiteVariety · H 7–7.5
- AdulariaVariety · H 6–6.5
- AgateVariety · H 6.5–7
- Alabaster ⚠️Variety · H 2
- AlexandriteVariety · H 8.5
- AmazoniteVariety · H 6–6.5
- Amethyst ⚠️Variety · H 7
- Ametrine ⚠️Variety · H 7
- Anthill garnetVariety · H 7–7.5
- AquamarineVariety · H 7.5–8
- AventurineVariety · H 6.5–7
B
- Black opal ⚠️Variety · H 5.5–6.5
- BloodstoneVariety · H 6.5–7
- Blue John ⚠️Variety · H 4
- Blue topazVariety · H 8
- BortVariety · H 10
- Boulder opal ⚠️Variety · H 5.5–6.5
- BoweniteVariety · H 5–6
- BronziteVariety · H 5–6
C
- CarbonadoVariety · H 10
- CarnelianVariety · H 6.5–7
- Cat's eye chrysoberylVariety · H 8.5
- ChalcedonyVariety · H 6.5–7
- ChiastoliteVariety · H 6.5–7.5
- ChlorastroliteVariety · H 5–6
- Chrome chalcedonyVariety · H 6.5–7
- Chrome diopsideVariety · H 5.5–6.5
- Chrome tourmalineVariety · H 7–7.5
- Chrysoprase ⚠️Variety · H 6.5–7
- CitrineVariety · H 7
- CleavelanditeVariety · H 6–6.5
- Cobaltoan calciteVariety · H 3
- Common opal ⚠️Variety · H 5.5–6.5
D
- DemantoidVariety · H 6.5–7
- Desert rose ⚠️Variety · H 2
E
- ElectrumVariety · H 2.5–3
- Emerald ⚠️Variety · H 7.5–8
- Ethiopian opal ⚠️Variety · H 5.5–6.5
F
- Fairy crossVariety · H 7–7.5
- Fire opal ⚠️Variety · H 5.5–6.5
- Flos ferri ⚠️Variety · H 3.5–4
- FuchsiteVariety · H 2.5–3
G
- Gem silicaVariety · H 6.5–7
- GosheniteVariety · H 7.5–8
H
- Hackmanite ⚠️Variety · H 5.5–6
- Hawk's eye ⚠️Variety · H 6.5–7
- HeliodorVariety · H 7.5–8
- Herkimer diamondVariety · H 7
- HessoniteVariety · H 7–7.5
- HiddeniteVariety · H 6.5–7
- Hyalite ⚠️Variety · H 5.5–6.5
I
- Iceland sparVariety · H 3
- Imperial jadeVariety · H 6.5–7
- Imperial topazVariety · H 8
- Inca roseVariety · H 3.5–4
- IndicoliteVariety · H 7–7.5
- IoliteVariety · H 7–7.5
- Iron roseVariety · H 5.5–6.5
J
- JasperVariety · H 6.5–7
K
- Kidney oreVariety · H 5.5–6.5
- Kunzite ⚠️Variety · H 6.5–7
L
- Larimar ⚠️Variety · H 4.5–5
- Lavender jadeVariety · H 6.5–7
- LodestoneVariety · H 5.5–6.5
M
- Malaya garnetVariety · H 7–7.5
- Mandarin garnetVariety · H 7–7.5
- Manganoan calciteVariety · H 3
- Matrix opal ⚠️Variety · H 5.5–6.5
- Maxixe beryl ⚠️Variety · H 7.5–8
- MelaniteVariety · H 6.5–7
- Milky quartzVariety · H 7
- MoonstoneVariety · H 6–6.5
- MorganiteVariety · H 7.5–8
- Morion ⚠️Variety · H 7
N
- NephriteVariety · H 6–6.5
O
- OnyxVariety · H 6.5–7
- Oregon sunstoneVariety · H 6–6.5
P
- PadparadschaVariety · H 9
- Paraíba tourmalineVariety · H 7–7.5
- PeridotVariety · H 6.5–7
- Peruvian opal ⚠️Variety · H 5.5–6.5
- PrasioliteVariety · H 7
- Precious opal ⚠️Variety · H 5.5–6.5
- Pyrite sun ⚠️Variety · H 6–6.5
R
- Rainbow garnetVariety · H 6.5–7
- Rainbow moonstoneVariety · H 6–6.5
- Red berylVariety · H 7.5–8
- RhodoliteVariety · H 7–7.5
- Rock crystalVariety · H 7
- Rose quartz ⚠️Variety · H 7
- Rose rockVariety · H 3–3.5
- RubelliteVariety · H 7–7.5
- RubyVariety · H 9
- Rutilated quartzVariety · H 7
S
- SapphireVariety · H 9
- SardVariety · H 6.5–7
- SardonyxVariety · H 6.5–7
- Satin spar ⚠️Variety · H 2
- Selenite ⚠️Variety · H 2
- Smoky quartz ⚠️Variety · H 7
- SpectroliteVariety · H 6–6.5
- SpeculariteVariety · H 5.5–6.5
- Spirit quartzVariety · H 7
- Star diopsideVariety · H 5.5–6.5
- Star garnetVariety · H 7–7.5
- Star rubyVariety · H 9
- Star sapphireVariety · H 9
- SunstoneVariety · H 6–6.5
T
- Tanzanite ⚠️Variety · H 6–7
- ThuliteVariety · H 6–6.5
- Thunder Bay amethyst ⚠️Variety · H 7
- Tiger's eye ⚠️Variety · H 6.5–7
- TopazoliteVariety · H 6.5–7
- Tourmalinated quartzVariety · H 7
- Trapiche emerald ⚠️Variety · H 7.5–8
- TsavoriteVariety · H 7–7.5
V
- VerdeliteVariety · H 7–7.5
W
- Watermelon tourmalineVariety · H 7–7.5
Y
- Yogo sapphireVariety · H 9
The dictionary's figures are typical ones, and specimens vary. ⚠️ marks entries with a caution (toxic, radioactive, or easily damaged): open one to see what to do.