THE JGRL GEM LIBRARY
Get to know gemstones.
Discover the reasons for their beauty.
The structure behind a color. The place a gem formed. The cut that brings out its light.
A collection of fundamentals to help you understand each stone.
Crystals / Origins / Colors / Hardness / Cuts
EXPLORE THE GEMSTONES
Explore gemstones
Search by name or color to discover a gemstone.
Emerald
Emerald
Green beryl colored by chromium or vanadium. Aquamarine and morganite are varieties of the same mineral.
- Mohs hardness
- 7.5–8
- Crystal system
- Hexagonal
Aquamarine
Aquamarine
Blue beryl with a sea-like color. It shares a mineral species with emerald, while its color and inclusion characteristics differ.
- Mohs hardness
- 7.5–8
- Crystal system
- Hexagonal
Morganite
Morganite
Beryl with a gentle pink color related to manganese. Large stones with attractive transparency are also known.
- Mohs hardness
- 7.5–8
- Crystal system
- Hexagonal
Illustrations suggest color and shape. Individual stones vary; each gem page includes further details and references.
A LITTLE KNOWLEDGE, A DEEPER APPRECIATION
The more you know,
the more there is to discover.
How do hardness and toughness differ?
Understand the language of gems, one idea at a time.