After you watch the Identifying Minerals video, you will want to test your skills at identifying minerals. Be sure to download the Mineral Identification Chart to help.
The questions are chosen randomly, so this quest will be different each time you reload the page.
Properties for this mineral:
- Color: clear
- Luster: vitreous
- Streak: white
- Hardness: scratches penny and penny scratches it
- It breaks with: cleavage in three directions
When you have compared these properties with the ID Chart, and think you know the answer, click here.
This is the mineral calcite.
Properties for this mineral:
- Color: silver
- Luster: metallic
- Streak: brick red
- Hardness: scratches glass
- It breaks with: rough fracture
When you have compared these properties with the ID Chart, and think you know the answer, click here.
This is the mineral hematite.
Properties for this mineral:
- Color: white
- Luster: vitreous
- Streak: white
- Hardness: scratched by fingernail
- It breaks with: cleavage in one direction
When you have compared these properties with the ID Chart, and think you know the answer, click here.
This is the mineral gypsum.
Properties for this mineral:
- Color: purple
- Luster:vitreous
- Streak: none
- Hardness: scratches glass
- It breaks with: conchoidal fracture
When you have compared these properties with the ID Chart, and think you know the answer, click here.
This is the mineral quartz. Purple quartz is often called amethyst, but it still has the same chemical formula as other quartz.
Properties for this mineral:
- Color: yellow-orange
- Luster: vitreous
- Streak: none
- Hardness: scratches glass
- It breaks with: conchoidal fracture
When you have compared these properties with the ID Chart, and think you know the answer, click here.
This is the mineral quartz. When quartz has a yellow color, it is often called citrine, but the color is due to impurities. It still has the same chemical formula as other quartz.
The questions are chosen randomly, so this quest will be different each time you reload the page.