Crystals That Start With R
There are 12 crystals, rocks and gemstones in Gemdle that start with the letter R — each with a specimen photo, its Mohs hardness and a quick note on how to spot it. Tap any stone for the full identification guide.
Notable crystals that start with R
- Ruby — Red, subadamantine, vitreous, pearly (on partings) lustre, Mohs 9.0.
- Rhyolite — Brown.
- Rutile — Red, adamantine to metallic lustre, Mohs 6.0–6.5.
- Red Beryl — Red, vitreous lustre, Mohs 7.5–8.
- Rhodochrosite — Pink, vitreous to pearly lustre, Mohs 3.5–4.
- Realgar — Red, resinous to greasy lustre, Mohs 1.5–2.
- Red Coral — Red, dull, waxy when polished lustre, Mohs 3–4.
- Rhodonite — Pink, vitreous to pearly lustre, Mohs 5.5–6.5.
All 12 stones beginning with R
Frequently asked questions
How many crystals start with the letter R?
Gemdle lists 12 crystals, rocks and gemstones beginning with R, including Ruby, Rhyolite, Rutile.
What is a well-known crystal that starts with R?
Ruby is one of the most searched-for stones beginning with R. Ruby is a pinkish-red to blood-red-colored gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α-Al2O3).