Geology Superstore
Geology Superstore

Basalt

£1.38£3.28 ex VAT

Basalt igneous rock specimens from Northern Ireland, which formed during the Tertiary period approximately 60 million years ago. A dense, fine crystalline, dark coloured rock which forms at extrusive igneous bodies and contains olivine alongside with various pyroxene minerals such as augite along with plagioclase as well. The samples are available in 3 sizes and come supplied in a white card specimen tray with a label. Being so common and an important igneous rock, it is suitable for educational use as they are one of the introductory and staple rocks that students are often shown when entering earth sciences.

  Hurry up! Sale end in:
+
  •  Delivery & Return

    Delivery

    We ship to all 50 states, Washington DC.
    All orders are shipped with a UPS tracking number.
    Always free shipping for orders over US $200.
    During sale periods and promotions the delivery time may be longer than normal.

    Return

    Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.

    Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
    Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.

    Help

    Give us a shout if you have any other questions and/or concerns.
    Email: contact@mydomain.com
    Phone: +1 (23) 456 789

  ... people are viewing this right now
Compare
  Share
Guaranteed Safe Checkout

Basalt is a commonly occurring igneous rock which exhibits a fine crystalline texture and dark (often black or dark brown) colouration. Due to its chemistry, it is fairly dense and almost often forms as an extrusive rock, which is when molten magma erupts (extrudes) onto the earths surface. These particular specimens are from Northern Ireland and are a part of the Antrim lava group. The basalt (which also includes the famous Giants Causeway) are dated to approximately 60 million years old to the Tertiary period. Their chemistry suggests that the rock is olivine basalt and comprises of plagioclase feldspar, olivine, augite, though other minor mineral may be present. Basalt, being so common, is a suitable beginner collectors sample and an important rock for educational use due to how it forms as well as an important component in palaeomagnetism which allows geologists to observe and study the movement of the earths magnetic poles through out geological time. The specimens we supply of this rock are available in 3 sizes and come supplied in a white card tray with a small label.

Weight 130 g
Specimen Size

2" x 2", 3" x 2", 4" x 3"

Based on 0 reviews

0.00 Overall
0%
0%
0%
0%
0%
Be the first to review “Basalt”

Your email address will not be published. Required fields are marked *

Reviews

There are no reviews yet.

Close
Categories
Close My Cart
Close Wishlist
Recently Viewed Close
Close

Close
Navigation
Categories