Star Dust?

"Then Dr, when will the further studies be performed?"

The reporter asked as she glanced at him with starry eyes.

The scientist grinned.

"Hehe, you don't need to worry about that, we have made some research these days and these crystals are very different from any metal on the Earth's crust, most likely they are from outer space, for now, we are calling it Star Dust."

He took a pause and then continued.

"Those crystals are as small as a salt grain and the biggest we have found so far is the size of a sugar crystal."

"These crystals are just like sand, but they are a lot heavier than any metal we have ever known, this sample here is about a volume of 1 cubic centimetre but it weighs about 250 grams, which is nearly 32 times the weight of a same-sized iron block."

"You see, if we are to take this sand in large portions, we cannot hold it much due to weight."