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About duba

Geologist (its more than enough)
Member Since May 28, 2006
70, Male, Israel

Answers


A:

Identify Light Blue Rock

No one can identify a rock without seeing it. I guess the rock belong to the Granite family ,because of the quartz. The gold deposits might be the Muscovite mineral - a phyllosilicate of aluminium ...
Submitted by duba 12 days ago
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A:

Ring at the Edge of the Solar System

Hi The ring can't affect our Sun-System. and surely not our galaxy. because it's made of dust and aggregates of ice with all inclusive a mass not larger than a little moon. Explanation: What has ...
Submitted by duba 18 days ago
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A:

Why is short-term prediction of earthquakes so ...

Earthquake Prediction By Ruth Ludwin Because of their devastating potential, there is great interest in predicting the location and time of large earthquakes. Although a great deal is known about ...
Submitted by duba 1 month ago
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A:

Stars

The planet Mercury is the closer planet to the Sun. Therefore you can see it only early in the morning (before sunrise) ,or at evening (immediately after sunset). I presume You saw Mercury.
Submitted by duba 2 months ago
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A:

The movie Knowing..... Fact or Fiction..? XP

Yes -the sun will finish her Hydrogen and will swell to be a RED GIANT, and she will swallow the EARTH. But it will occur only after 4.6 billions years.
Submitted by duba 3 months ago
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A:

How to seperate gold from sand

Searching for Gold Gold is a rare metal. It is inside rocks or mixed with river sand. People wash river sand to find gold. People dig for gold under the ground. Lumps of gold are called nuggets ...
Submitted by duba 3 months ago
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A:

I live in the north and here there are large ...

I am sorry, but your information is not enough to identify the stones. You must send a picture. Try entering the web-site : www.geology-israel.co.il It will help if you send ,at least, the exact ...
Submitted by duba 4 months ago
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A:

Question about the solar wind

The speed of the Solar wind = 300 - 700 km/sec The Density = 1.5 - 7 protons/cm3 TODAY= speed = 365.4 km/sec Density = 3.9 protons/cm3
Submitted by duba 4 months ago
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