Q: How old is a mineral that contains 25 percent U-235?

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The old testament contains the Prophets of our Father The new testament contains the writings about Christ and the Apostles

Take the old value and subtract from the new value, then divide by the old value. Multiply by 100. That number representsthe percent change.

----------------------- Matthew's Gospel contains the most references to the Old Testament, so much so that some believe that it could only have been written for Jews.

Subtract the old (60) from the new (94), then divide by the old value (60). Thus: (94 - 60) / 60 = 0.566666667 Round up to 57 and add the % So the increase is 57%

percent increase = (new amount - old amount)/ old amount = (8.80 - 2.05)/2.05 = 3.29268 = 329.27 %

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3 times the half-life.

If you are referring to radioactive fallout on the planet earth, it is two billion years old. Africa has places where natural reactors formed where U235 precipitated from streams where they reached the ocean. They produced fallout.

As old as chalcedony, created with the earth.

The mineral is lead.

Mineral crystals can be days old or millions of years old. Mineral crystals are constantly forming through various processes including solidification from magma and lava, and evaporation of solutions.

The old stove windows were made of the mineral mica.

14.7 percent of the Romanian population is 0-14 years old. 11.8 percent of the population is 15-24 years old. 45.5 percent of the population is 25-54 years old. 13 percent of the population is 55-64 years old. 15.1 percent of the population is 65 years old or older.

The Old Testament contains 39 books.

The oldest lake in the world is Lake Baikal. It is believed to be at least 25 million years old and is located in south-east Siberia. Baikal is a freshwater lake and contains about 20 percent of the world's unfrozen fresh water.

If it contains alcohol, it is alcoholic. There are some brewed beverages, such as ginger beer, that may contain a very small amount, less then 1/2 a percent of alcohol.

It is all part of life minerals come and go so to start a new mineral you need an old broken down mineral