Question

Which country is the largest producer and exporter of mica in the world?
a. China
b. India
c. Jamaica
d. Brazil

Answer 1

Hint:
The mica, gathering of sheet silicate (phyllosilicate) minerals incorporates a few firmly related materials having almost amazing basal cleavage. All are monoclinic, with an inclination towards pseudohexagonal precious stones, and are comparative in the compound organization. The almost wonderful cleavage, which is the most conspicuous attribute of mica, is clarified by the hexagonal sheet-like game plan of its particles.

Complete solution:
The biggest mica maker on the planet in 2019 was China, delivering around 100,000 metric huge loads of mica. Following China was Finland, which delivered 64,000 metric tons that year. The mineral mica is a gathering of aluminosilicates with different metals that split into fine sheets.

Mica is generally appropriated and originates in molten, transformative, and sedimentary systems. Huge gems of mica utilized for different applications are ordinarily mined from granitic pegmatites.

Until the nineteenth century, enormous precious stones of mica were very uncommon and costly because of the restricted flexibility in Europe. Nonetheless, their cost drastically dropped when enormous stores were found and mined in Africa and South America during the mid-nineteenth century. The biggest archived single gem of mica (phlogopite) was found in Lacey Mine, Ontario, Canada; it estimated 10 m × 4.3 m × 4.3 m (33 ft × 14 ft × 14 ft) and weighed around 330 tons (320 long tons; 360 short tons). Comparable estimated gems were additionally found in Karelia, Russia.

Hence, the correct answer is option A.

Note:
 Scrap and drop mica is created everywhere in the world. In 2010, the significant makers were Russia (100,000 tons), Finland (68,000 t), United States (53,000 t), South Korea (50,000 t), France (20,000 t) and Canada (15,000 t). The all-out worldwide creation was 350,000 t, albeit no dependable information was accessible for China. Most sheet mica was delivered in India (3,500 t) and Russia (1,500 t). Piece mica comes from a few sources: the transformative stone called schist as a result of handling feldspar and kaolin assets, from placer stores, and from pegmatites. Sheet mica is impressively less plentiful than drop and scrap mica and is infrequently recuperated from mining scrap and chip mica. The main wellsprings of sheet mica are pegmatite stores. Sheet mica costs differ with grade and can go from under 1 per kilogram for bad quality mica to more than 2,000 per kilogram for the highest calibre.