Physical Features
Common Uses
Composition
100

The 3 colors that Hornblende can range from

What are Black, Dark Brown, and Dark Green?

100

When Hornblende is cut and polished, it is rebranded as this

What is "Black Granite?"

100

Hornblende has this measurement on the Moh's Hardness Scale

What is 5-6?

200

It's imperfect in two directions at 56° and 124° 

What is Hornblende's Clevage?

200

Hornblende has this many industrial uses

What are few?

200

Hornblende measures closely with 2 other minerals on Moh's Hardness Scale

What are Apatite and Orthoclase?

300

Hornblende has a ____ that is uneven.

What is a Fracture?

300

Hornblende can be used as this to help keep trains steady and aid with drainage

What is Train Ballast?

300

Hornblende has this kind of Crystal Structure

What is Monoclinic?

400

The Luster of Hornblende

What is Vitreous or Silky?

400

Black Granite slabs can be used for these things

What are countertops, floor tiles, and structural decor?
400

The Chemical composition of Hornblende consists of these elements

What are the elements Calcium, Sodium, Magnesium, Iron, Aluminum,and Silicon?

500

The Streak of Hornblende

What is White/Colorless, brittle, and leaves cleavage debris behind instead of a streak?

500

This is how polished Hornblende can be described

What is spotted/splotchy, smooth, dark, and crystal-having?

500

Hornblende stems from this Mineral

What is Silicate?