Which mineral is generally identified by its conchoidal fracture and vitreous lustre?Group of answer choicesPlagioclaseOrthoclaseBiotiteQuartzAmphibole

When a  substance that has NO cleavage breaks, the fractures look like ice-cream when it is scooped. These are called conchoidal fractures. They have sharp edges and were used by cavemen as cutting and scraping tools. In the list below, one is a MINERAL with conchoidal fracture. Which is it?Group of answer choicesMicaObsidianQuartzCalcite

What is not a good identifier for identifying a mineral?colorstreakcleavage and fractureluster

An unknown mineral will scratch feldspar but will not scratch corundum.Based on Moh’s scale, which mineral is most likely the unknown mineral?Select one:Diamondhighlight_offTopazhighlight_offCalcitehighlight_offApatitehighlight_off

3. Which is the way a mineral breaks apart in an irregular way? Mineral Cleavage Crystal Fracture

Anton found the following mineral and wanted to classify it. Describe this mineral's properties for: Lustre, colour, streak, fracture and hardness. (5 marks)