Why do some very hard minerals leave no streak?

Mohammed Leannon asked a question: Why do some very hard minerals leave no streak?
Asked By: Mohammed Leannon
Date created: Wed, May 19, 2021 1:44 AM

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FAQ

Those who are looking for an answer to the question «Why do some very hard minerals leave no streak?» often ask the following questions:

👉 Does diamond leave a streak?

Gold will leave a golden streak, but fool's gold, the mineral pyrite, will leave a black streak. Harder precious stones such as quartz, tourmaline, most garnets, peridot, beryl (aquamarine, emerald, etc.), corundum (ruby & sapphire), Chrysoberyl (alexandrite & cat'seye), and diamond will not leave a streak.

👉 Will diamond leave a streak on a streak plate?

Diamond will not leave a streak on a porcelain streak plate because diamond is harder than the streak plate. It will leave a scratch on the streak plate for the same reason.

👉 Does a diamond leave a streak on a streak plate?

Diamond will not leave a streak on a streak plate. This is because the diamond is harder than the streak plate. It may leave a scratch, though.

1 other answer

Some minerals are harder than a streak plate and will therefore leave no streak or the powder of the ceramic streak plate.

Your Answer

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What are some very beautiful gems?

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How does the color of a mineral compare to the minerals streak color?

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Why is diamond very hard and graphite soft?

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What are some minerals that begin with a-z?

Here are some of the minerals in alphabetical order:

  • aluminium
  • arsenic
  • bismuth
  • calcium
  • copper
  • diamond
  • emerald
  • epidote
  • feldspar (group of minerals)
  • fluorite
  • gold
  • graphite
  • halite (AKA rock salt)
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  • iron
  • jasper
  • kaolinite
  • kyanite
  • lead
  • magnesium
  • manganese
  • mica
  • nickel
  • onyx
  • phosphorous (dietary mineral)
  • pyrite (fool's gold)
  • quartz
  • quenstedtite
  • rhodium
  • ruby
  • selenite
  • silver
  • talc
  • tin
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  • yttrialite
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Please note that Wikipedia has an excellent mineral list under "list of minerals."

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Minerals, fresh water, and biosphere resources are distributed unevenly around the planet as a result of past geologic processes… Mineral, fresh water, ocean, biosphere, and atmosphere resources are limited, and many are not renewable or replaceable over human lifetimes.

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Why diamond is very hard and graphite is soft?

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