• “Bringing The Past, Into the Future”
  • +44 (0) 1204 388754
Geology Superstore
Geology Superstore
Porphyritic_Trachyte-removebg-preview
Porphyritic_Trachyte-removebg-preview
Porphyritic_Trachyte-removebg-preview
Porphyritic_Trachyte-removebg-preview

Porphyritic Trachyte

Nepheline

£2.50 – £10.00 ex VAT
Siltstone

Siltstone

£2.25 – £6.00 ex VAT

£2.25 – £6.00 ex VAT

Porphyritic trachyte from East Lothian, Scotland exhibiting excellent rhomb porphyry crystal inclusions of feldspar. These rock specimens are available in a range of sizes and will come with a tray and a data label.

  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
  Share
Guaranteed Safe Checkout

Trachyte is an igneous rock produced by volcanic activity, unlike sanidine trachyte or standard trachyte, these specimens also exhibit larger porphyritic crystals of feldspar within it as well with an almost rhomb shaped crystal structure. These particular rock specimens come from the former Bangley Quarry, north of Haddington, East Lothian, Scotland and are available in various sizes and will come supplied in a card tray with an information 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 “Porphyritic Trachyte”

Your email address will not be published.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

Reviews

There are no reviews yet.

SKU: IGNROK048 Categories: , , Tags: , , , , , , ,
Close
Categories

Related Products

Gabbro Big Feldspar £2.25 – £6.00 ex VAT

Hand size specimens of the big feldspar variant of gabbro, samples were collected from Carrock fell, Cumbria, UK and can be supplied in 3 sizes.

We also supply Gabbro Big Feldspar thin sections for microscope study which are available to buy HERE.

Select options

66 in stock

Rhyolite (Felsite) £2.25 – £3.50 ex VAT

Rhyolite Felsite, a highly felsitic composed variation of Rhyolite, found in Fife, Scotland, an extrusive igneous rock composed of sodium, quartz and feldspar, thus often having a pale white to pink colouration. Available in various sizes and supplied in a card tray with an information label.

Select options

32 in stock

Aeolian Sandstone
Aeolian Sandstone £2.25 – £6.00 ex VAT

Specimens of Aeolian Sandstone collected from Lazonby, near Penrith, Cumbria in the UK. This aeolian sandstone is Triassic in age – approximately 200 Ma. It belongs to the group of rocks known as the New Red Sandstone which date from the Permian (280 Ma) into the Triassic. The composition of this sandstone consists solely of spheroidal (millet seed) quartz grains with an iron oxide cement called haematite. It is the presence of this haematite that contributes to the distinct red – orange colouration of these samples. This lithology is typical of an aeolian (wind blown) hot desert environment. Available in multiple sizes, these specimens come supplied in a white card tray with information label.

We also supply Aeolian Sandstone thin sections for microscope study which are available to buy HERE.

Select options
Rhyolite £2.25 – £6.00 ex VAT

Rhyolite specimens found in Cumbria. Rhyolite is a felsic (silica rich) rock, often formed in highly explosive volcanoes. Specimens are supplied in a card tray with label.

We also supply Rhyolite thin sections for microscope study which are available to buy HERE.

Select options

57 in stock

Ignimbrite Welded Tuff
Ignimbrite Welded Tuff £2.25 – £6.00 ex VAT

Ignimbirte welded tuff is a pyroclastic rock of any origin formed through volcanic processes, the rock appears to show streaks of welded material on some surfaces and appears to be rhyolitic on the inside. Specimens come from Cumbria and are available in various sizes.

We also supply Welded Tuff thin sections for microscope study which are available to buy HERE.

Select options

73 in stock

Metagabbro £2.25 – £6.00 ex VAT

Metagabbro specimens from Lom, Central Norway. Also known as scapolite-hornblende due to the absence of feldspar in the rock are available in 3 optional sizes and come supplied in a card tray with a data label.

Select options

40 in stock

Limestone
Limestone £2.25 – £6.00 ex VAT

Specimens of Limestone, collected from Derbyshire. Limestone is a common, well known sedimentary rock. It consists of the calcium-rich shells, bones, and skeletons of the fauna that dominated during that period. It was laid down approximately 350 million years ago in semi tropical seas and comes from the Dinantian epoch of the Lower Carboniferous. This rock is very pure, about 98% soluble in rainwater (over time) leaving only residual clay. Its uses include aggregate, building stone, the manufacture of cement, paper & calcium carbide. Available in various sizes, each piece comes supplied in a white card tray with information label.

We also supply Limestone thin sections for microscope study which are available to buy HERE.

Select options

100 in stock

Amygdaloidal Basalt £2.25 – £6.00 ex VAT

Amygdaloidal basalt is an igneous rock which is extrusive in nature, these specimens formed over 60 million years ago during the Tertiary period and come from Ireland. They are part of the Antrim lava group and exhibit a dark colouration with occurrences of amygdales containing quartz and calcite crystals. As a basalt they are somewhat dense, but lighter than pure samples due to the cavities within them which formed as a result of gaseous activity during their ejection. Over time, hydrothermal fluids pass through the rock and minerals form within the cavities, which gives the usually dark coloured rock a speckled appearance. These samples are available in various sizes and are suitable for higher educational use to detail the subtle differences between similar igneous rocks, they come supplied in a card tray with an information label.

Select options

59 in stock

Rhomb Porphyry £2.25 – £6.00 ex VAT

An igneous rock exhibiting a porphyritic texture containing large cubic crystals of feldspar within a fine grained matrix. Collected near Oslo, Norway. Each sample is supplied in a labelled card tray. Each sample is supplied in a labelled card tray.

We also supply Rhomb Porphyry thin sections for microscope study which are available to buy HERE.

Select options

45 in stock

Biotite Granite (polished) £1.50 – £6.00 ex VAT

Biotite granite from Spain exhibiting plagioclase feldspar, quartz and biotite mica, specimens have been cut and polished on one surface allowing easy viewing of the crystals without the aid of magnification.

Select options

2 in stock

Shap Granite (Monzogranite) £2.25 – £6.00 ex VAT

Shap granite igneous rock specimens from Shap Fell, Cumbria, UK which exhibit typical coarse grained crystalline textures expected of intrusive felsic rocks, being composed of quartz, plagioclase and orthoclase feldspar and biotite mica. This popular granite is very sought after for a variety of applications and has a colourful appearance. It is believed to have formed during the early Devonian period as a plutonic intrusion in the area and is quarried extensively. Samples are ideal for collectors of all levels and ages as well as all educational levels as the minerals can be easily described with the origin and processes being suitable to teach higher level students. Samples are available in three sizes and come supplied in a card tray with an information label.

We also supply Shap Granite thin sections for microscope study which are available to buy  HERE.

Select options
Syenite – (Larvikite) £2.25 – £6.00 ex VAT

Larvikite is an igneous plutonic rock and variant of monzonite from Larvik, Norway, due to its chemistry, it is composed mainly of orthoclase, albite and anorthite along with plagioclase which gives the rock a blue to silver shimmering effect. The igneous pluton formed during the Permian period, 292 – 298 million years ago during the the Variscan orogeny. A beautiful rock to observe due to its coarse crystalline texture and schiller effect, the samples are ideal for general interest, collectors and educational use with specimens being available in three sizes and come supplied in a card tray with an information label.

We also supply Syenite thin sections for microscope study which are available to buy HERE.

Select options

138 in stock

Close My Cart
Close Wishlist
Recently Viewed Close
Close

Close
Navigation
Categories