Is this Schema? Did Test, and Shows Nothing

[vetofunk]

Hi Everyone,

If you look at the first listing on https://www.google.com/search?q=tanzanite+minerals&ie=utf-8&oe=utf-8, you will see this under the listing:

Mineral Class‎: ‎ZoisiteLuster‎: ‎VitreousChemical Formula‎: ‎Ca₂Al₃(SiO₄)₃(OH)Crystal System‎: ‎OrthorhombicI tried to run a test against the page and it shows no schema. How are they doing this as we would love to provide the same information.Thank you!

[vetofunk]

I did test the page in Google Rich Snippet tester and it showed nothing. I see the same thing with Wikipedia's listing on https://www.google.com/search?q=tanzanite&ie=utf-8&oe=utf-8

Tanzanite - Wikipedia

<cite class="_Rm">https://en.wikipedia.org/wiki/Tanzanite</cite>

Tanzanite is the blue/violet variety of the mineral zoisite belonging to the epidote group. It was discovered by a Tanzanian Jumanne Mhero Ngoma in the ...

Color‎: ‎Blue, VioletCrystal habit‎: ‎Prismatic crystals with striations; ...Crystal system‎: ‎OrthorhombicStreak‎: ‎White or colorless

[ati1]

It's possible that simply by arranging the information in a table, it helped them gain a listing like that. It worked for me once, as well in a different topic. I think the website/page itself has to be very relevant/authoritative for something like this to happen.