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You farm obsidian effectively with Ankylo on the volcano mountain, you can also easily get stones with that dino as well.

you can kill the penguins and smack their body with club for Organic Polymer or better yet if you play single player you can tame achatina as these snails make you tons of organic polymers easily in short span of time.

You get more potent dust by grinding amber on Industrial Grinder than Mortar and Pestle

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