How many gemstones start with A?

18 of the 170 gemstones in Icillion start with A, for example Amethyst, Aquamarine and Amber.

What is the longest name among gemstones that start with A?

The longest is “Apache tears” and the shortest is “Agate”.

Science · lists

18 gemstones start with A, from “Abalone” to “Azurite”. Every one of them counts as an answer in Icillion.

A is the 2nd most common first letter in this list: 18 of the 170 gemstones (11%).
Shortest: “Agate”. Longest: “Apache tears”.
1 name has more than one word.
2 can be spelled more than one way, and all the spellings count.

How many gemstones start with A?: 18 of the 170 gemstones in Icillion start with A, for example Amethyst, Aquamarine and Amber.
What is the longest name among gemstones that start with A?: The longest is “Apache tears” and the shortest is “Agate”.

How deep does your knowledge go?

Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.