The IINH Geological Collections are divided into three main sub-collections:
The Mineral and Rock Collection
The Fossil Collection
The Drill Core Collection
The Mineral and Rock Collection and Fossil Collection comprise about 37,700 items. These collections are stored at our location in Garðabær. The Drill Core Collection comprises approximately 37,000 m of drill core samples and is kept at Breiðdalsvík.
Mineral and Rock Collection
The IINH strives to maintain a comprehensive collection of all known Icelandic rock and mineral species from various geological formations. The IINH Mineral and Rock Collection also includes samples of rocks and minerals that have been used for industrial purposes in Iceland and some rock and mineral artefacts uncovered in archaeological excavations. This collection is the basis for various types of research on Icelandic rocks and minerals. It also provides a supply of specimens for exhibition or educational purposes with short notice. As of the end of 2020, the Mineral and Rock Collection comprises a little less than 28,900 items.
IINH employees have been very active in developing these collections and acquiring samples. Public institutions have donated a considerable number of samples, the University of Iceland in particular. Donations have also been received from private individuals. The largest donations to the collection from the time that the Icelandic state assumed responsibility for its operation are the mineral collection donated by Axel Kaaber in 1989, which contained a total of 950 samples, and a giant amethyst from Brazil, also donated in 1989 by an Icelandic insurance company, Brunabótafélag Íslands. Most rock and mineral samples from outside of Iceland have been bought or traded for Icelandic samples.
The Strunz and Nickel Classification System is used for organizing and classifying minerals, while Tröger’s system (1969) is taken into consideration in organizing rock species.
An accessible and well-organised collection facilitates research on individual mineral species and rock types. In some cases, research would not be possible without the existence of the collection, as specimens of good enough quality are no longer available in nature or would be prohibitively expensive to obtain. Several dozen specimens are loaned out every year for research or display. The Mineral and Rock Collection is catalogued in the IINH geology database (not currently available online).
The IINH Fossil Collection includes fossils from nearly all known fossil sites in Iceland. It also holds some foreign fossils. The Originals is a separate division within the fossil collection, which holds Icelandic fossils that have been used in published material. The fossil collection is important for studying the palaeoenvironment in Iceland. For example, there is a collection of fossilised leaves and fruits of tree species that grew in Iceland in the Miocene and Pliocene epochs (5–15 million years ago) but are now only found in warmer climes.
As of the end of 2015, the fossil collection contains around 8800 specimens, all of which are registered in IINH geology database (not currently available online).
Drill Core Collection
Drill cores are bedrock and soil samples extracted from the ground for various exploration and research purposes.
The IINH Drill Core Collection comprises about 37,000 m of drill cores and is Iceland’s repository for core samples collected by the National Energy Authority, the National Power Company of Iceland, the Icelandic Road Administration, and various other bodies that engage in research drilling in Iceland. In November 2015, the Drill Core Collection was moved from its original location in Akureyri to Breiðdalsvík in East Iceland.
Planning is underway for a central, standardised database containing information on drill core holdings for geologists in the fields of stratigraphy, petrology, and mineralogy.