You are here:

Geology/Unknown Rock


Unknown Rock
Unknown Rock  

Unknown Rock
Unknown Rock  

My father unearthed this rock many years ago and i was wondering if you could indentify it.

Many Thanks,


To identify a rock some info is required like its hardness, streak of its minerals, sp. gravity etc. Most of the time its not possible to identify rocks and minerals from only pics.

A geologist normally identifies minerals and rocks from various attributes including the sensation on touching the rock as well.

From the pics, to me it looks like some variety of glass - may be agate-chalcedony ( its fractures, lusture, colour etc.)

pl. show it to some nearby geologist.


All Answers

Answers by Expert:

Ask Experts




Would be happy to answer : General Geology, Engineering Geology, Economic Geology, Geomorphology, Geoenvironment, Tectonics, Natural Resources inclusive of Rocks & Minerals, Exploration, Science Policy etc.


Geological-Geotechnical Solutions and professional advice. I have over 34 years of professional experience of working as a geologist in diverse mountainous terrain. I have professional skills for planning. programming, executing and monitoring of : (1) Engineering Geological investigations in Hydropower and Developmental projects, (2) Landslide and Disaster Management etc. (3) Natural Resource Management and Programming (4) Geological Mapping (5) Geoenvironmental Management (6) Mineral Exploration (7) Water Resources Management, (8) Integrated Watershed Management, (9) Training on - Natural Resource Management, Geoenvironmental Management, Waste Management, Geohazards, Geotechnical Investigations, Data acquisition & interpretations, (10) R&D Initiatives and Societal issues etc.

ex-Geological Survey of India. Retired Director now Geo-Consultant and Advisor -HIGEOS India

Departmental Publications mostly

M.Tech.(Applied Geology), University of Roorkee (now IIT Roorkee).

Past/Present Clients
Worked in the Geological Survey of India for aabout 32 years. Presently - GeoConsultant & Advisor - HIGEOS India

©2017 All rights reserved.