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Ceramica Las Losas S.L.

Mine Details

Available Terms: Joint Venture
Price: Socio/ Inversionista para investigación


We are working on the start-up of the old graphite mines of Guadamur in Toledo, Spain. We are actively looking for companies or individuals specialised in the exploitation and distribution of graphite who are interested in investing, becoming equity partners or acquiring this mine, to continue with the process of soil investigation and the reactivation of the mine. in which the discovery of secondary minerals of great importance such as Rhodium and Gold has been made.

Location and Access

The mine is located in Spain, 10km from Toledo and 80km from Madrid, 500m from the CM401 road and can be seen on google maps as the old mining reserve of Guadamur. It has an extension of 4 mining blocks in exploitation concession (120ha) and 38 mining blocks in research (1140ha).


Studies were carried out at the Guadamur Graphite Mines with two main objectives. Firstly, assessments were made of the clays present in the mine, which are currently used by the Cerámica Las Losas S.L. factory. These analyses focused on determining the quality and properties of these clays, which is essential for the production of high quality ceramics.
Secondly, more extensive investigations were carried out on the graphite deposit itself. Previous studies dating back to 1959 provided valuable information on the composition and characteristics of the deposit. These studies indicated that the graphite deposit is formed through a series of medium volume pockets, and these pockets vary in terms of graphite concentration, with varying grades from 3% to 5% in the poor ones; 5% to 20% in the medium ones and 20% to 60% in the most graphite-rich areas and this can take the form of seams, and the rock in which the graphite is found is mainly gneiss and pegmatite.
In addition to graphite, secondary minerals of great importance were identified. One of the notable minerals is rhodium, which is found in certain areas of the deposit. Rhodium is a precious metal with a high economic value according to the New York Stock Exchange and the London Stock Exchange, which adds an additional element of interest and potential economic benefit to the mining project.
Our aim is to reactivate the extraction of these valuable minerals from the old graphite mines of Guadamur, which we currently use as a quarry to extract clay for the manufacture of bricks. The areas that host these precious minerals remain in their original state, which allows them to be exploited both in open pit and in mine, available for use.
It is important to note that our mining concession has all the documentation in order, supporting the viability and legality of this project.


The Osmundo Mine is located in the Toledo Anatectic Complex, which comprises rocks of different ages, from Precambrian to Palaeozoic. These rocks have undergone an intense process of metamorphism, which has even led to the partial melting of some materials and granitoid bodies of Hercynian to Late Hercynian age. In this area, we find graphite associated with the transformation of carbon-rich gneiss and pegmatite rocks. In addition to clays and C-type minerals.


The mine's history dates back to 1961, when the mine experienced a period of stagnation due to economic conditions and declining demand, despite having a workforce of over 100 at its peak.
In 1998, we acquired the mine and commenced the necessary procedures to obtain the operating concession. This concession was granted in 2001, with an initial duration of 30 years, extendable twice for 30 years each.
From that moment on, our mine acquired the name "Concesión Minera Osmundo" with the identification number 3815.

Additional Information

Propietario Coordinadora
Tel:+34 620 91 36 00 Tel: +34 640 32 44 80



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