Q. Which of the following minerals and respective major producer countries is/are matched correctly?

1. Jade - Myanmar 
2. Fluorite - China
3. Vanadium - Russia
4. Niobium - Brazil

Choose the correct answer using the codes given below:
Answer: Only 1, 2 & 4
Notes: Myanmar produces 90% of the world's jade, primarily from Hpakant in Kachin State. Fluorite, or fluorspar (CaF2), is mainly produced in China. Vanadium, a grey, soft, ductile element, is derived from iron ore, steel slag, and phyllites, with major production in China, followed by South Africa and Russia. Niobium, also known as columbium (atomic number 41), is primarily produced in Brazil and Canada.