Thanks for sharing your insight on gems. Can you please tell me besides the Nine Precious Gems...

for the 9 Planets in Astrology what other semi-precious gems can be used. Especially for Jupiter - Yellow Sapphire , (Can one use a different colour gem that represents Jupiter like Blue Topaz or Blue Apatite). For Mars instead of Red Coral what else can be used. (Can Tanzanite be used for Mars)? For Moon what can be used instead of Moonstone & Opal.(Can one use Morganite - Pink Beryl)?

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