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Which is NOT a mineral characteristic?

• Color

• Luster

• Transparency

• Shape

Crystals have an arranged chemical formula?

• Tru

• False

Match the following definition:

An inorganic, solid natural substance without any fixed chemical formula.

• Mineral

• shape

• Luster

• Rock

What elements are in wolframite?

• Iron and manganese

• Iron and hydrogen

• Oxygen and calcium

• Sodium and sulfur

What color is wolframite?

• White

• Grey/ black

• Purpule

• Brown/black

What type of rock is wolframite?

• Sedimentary

• Metamorphic

• Igneous

What is the hardness of wolframite?

• 4

• 5

• 6

• Pollitos bebes