Question

1. Fill in the blanks.

(a) A person who studies about crystals is known as a ..........
(b) A crystal commonly used in watches ..........
(c).....,...... crystals are manufactured from lead crystals, optically cut and polished for use in
jewellery making, fine collectibles, chandeliers,
glasswares etc.
(d)............ crystal from Tybol, Australia, is known as the most valuable and is of the highest
quality in the world.​

Answer 1

a .crystallographers

b. quartz crystal

c. Swarovski glass crystal

d. opal crystal

Answer 2

Answer:

Explanation:crystallo