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Geology/Rock identification

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Question
Blue Rock
Blue Rock  

Blue Rock 3
Blue Rock 3  
I have attached pictures of a rock I found years ago.  I am curious to know what it is because I have never seen another rock like it.

The rock has sharp edges almost like glass and is shiny.  It appears to have some silver-colored metal spots the largest of which can be seen in the 2nd picture (bottom-middle). It has some yellow/brownish discoloration on one side that can be seen fairly well in the 2nd picture.  Looking at the bottom right-hand side of the rock in the 2nd picture, the dark triangle appears to be rust; however it is odd because that area appears to have layers.  There appears to be some gravel mixed in throughout the rock also.

If this is an interesting rock to anyone but me, I'd be happy to send additional pictures.  Thank you for taking the time to look at this.

Sincerely,
Nancy

Answer
Dear Nqancy
Visuals of specimens looks like mineral
It may be quartz-mineral -can u scartach with iron nail or knife -it is scartching or not
if not scartch harder mineral may be quartz variety
However hand specimen -insperction possible to identify accuurately
by
Prof DVREDDY
Dr D.Venkat Reddy
Professor
Editor- in -Chief -International  Journal of  Earth Sciences&Engineering -IJEE

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Dr D.Venkat Reddy

Expertise

Engineering Geology,Mining geology,commercial petrology,Decorative and dimensional stones,Hydrogeology

Experience

20years texhing and reserch expireience in geology,enginnering geology for graduate and undergraduate students-reserch guidance,10years field exoireience conducting field camps for geology students=Presently Assistant professor in geolog

Organizations
NITK-National Institute of Technology,Surathkal,Mangalore-DK,India Geology section Dept of Civil Engineering

Publications
published 70 research papers.( 4 books)- Editor in Chief-International Journal of Earth Sciences and Engineering -1.Engineering Geology for civil Engineers-oxford &IBH pub-1996] 2.Decorative and dimensional stones of India-CBS Pub-1997 3.Engineering Geology-Vikaspublishers2010 4.Applied Geology-Vikaspub-2010

Education/Credentials
MSC(GEOLOGY),Osmania university,India, MSC(Tech )Hydrogeology,OU,India PhD(GEOLOGY)OU,India

Awards and Honors
Distinguishing Indian Award Editor in chief-International Journal of Earth Sciences and Engineering (www.cafetinnova.org)

Past/Present Clients
PRESENTLY WORKING =Professor of Geology-Dept of Civil Engineering NITK-INDIA

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