quartz
Quartz has the formula SiO2. This topic is part of Geology within Science & Nature. This page currently draws on 11 supporting questions, with answers and bonus facts available below.
quartz trivia questions
Quartz is made primarily of silicon and what other element?
Answer: Oxygen
Bonus fact: Quartz has the formula SiO2.
What hardness does quartz have on the Mohs scale?
Answer: 7
Bonus fact: Quartz defines hardness 7 on the Mohs scale.
What electrical property allows some quartz crystals to generate voltage when squeezed?
Answer: Piezoelectricity
Bonus fact: Quartz is widely used in oscillators because of its piezoelectric behavior.
Granite commonly contains quartz, mica, and what major mineral group?
Answer: Feldspar
Bonus fact: Feldspar is often the most abundant mineral in granite.
What common quartz-watch frequency is 2 to the 15th power hertz?
Answer: 32,768 Hz
Bonus fact: Dividing 32,768 by powers of two produces a one-second signal.
What common mineral crystal has the chemical formula SiO2?
Answer: Quartz
Bonus fact: Quartz is crystalline silicon dioxide.
Agate is a variety of which mineral?
Answer: Quartz
Bonus fact: Agate is a banded form of chalcedony, which is microcrystalline quartz.
Amethyst is a variety of which mineral?
Answer: Quartz
Bonus fact: Amethyst is purple quartz.
Which minerals commonly make up granite?
Answer: Quartz and feldspar
Bonus fact: Granite is rich in quartz and feldspar and often contains mica.
Feldspar is especially common in what rock type?
Answer: Granite
Bonus fact: Granite commonly contains feldspar, quartz, and mica.
What type of crystal oscillator keeps time in most inexpensive modern watches?
Answer: Quartz
Bonus fact: A quartz crystal vibrates at a precise frequency.