SCP-xxxx. Star skipped stone.

Item #: SCP-Xxxxxx

Object class: Euclid.

Special Containment Procedures: SCP-xxx is to be contained within a 15x15x7 m cell adapted humanoid containment room composed of soundproof materials. Containment unit must be equipped with reinforced basic ammenities and one of its walls replaced in its entirety by a 5’ reinforced glass observation window. Air inside the containment is to be continuously recycled and kept at a pressure no less than 2.5 atmospheres and O2 concentrations no greater than 2%. Containment is to be accessed through an standard industrial airlock, which must experience a bi-weekly revision to ensure no leaks are present.

SCP-xxxx is fed 3kg of Silicates twice daily, and personnel issued with a standard environmental hazard suit and oxigen supply is to enter the enclosure at least once a month to retrieve any SiO residues excreted by SCP-xxxx. These residues are to be disposed of at a local landfill site after being tested negative for any anomalous properties, this must be done under the cover story of disposing residues from an excavation site.

After incident #2, SCP-xxxx is allowed to access a circular perimeter of 30 meters around its containment cell for up to 2 1 hour every day, being escorted by 4 armed MTF at all times and wearing a modified shock collar rigged to inject concentrated oxigen in its bloodstream from remote activation in case of hostility. SCP-xxxx is encouraged to request minor improvements over its own containment as possible reward for compliance. After incident - These requests must always be reviewed by a level 3 researcher prior to acceptance.

Any new research staff working on scp xxxx expected to enter its containment cell are to follow an acclimatization process to the entity. Failure to follow this procedure before entering the containment cell will result in the scp showing distress and non compliance towards the perceived intruder, and can be cause of reprimanding.

Description: SCP-xxxx is a large, sapient silicon-based entity, it measures over 3.5/4.5 meters in height and weights 2 tons. SCP-xxxx appears to possess vaguely humanoid appearance, completely covered in hard rock-like material and with muscular digitigrade legs ending in hooves. It possesses a large triangular mouth morfologically matching the Selachimorpha superorder, with rows of sharp conical fangs composed of an unknown material. Two pairs of amber crystals are present on either side of its head above the mouthpiece. After basic light response tests, they have been determined to act as SCP-xxxx optical organs.

It’s body is largely covered in sharp spikes, excreted out of a silicon variety of chitin, each scoring 8.4 in the Mohs hardness scale. It is unknown how the scp regrows its spikes or if it does at all, but they are strong enough to resist great kinetic trauma, radiation, heat and even corrosion, granting SCP-xxx great resistance to ambient threats.

Asserting Internal organs and skeleton arrangement through X-rays testing as well as other electromagnetic analysis have proven unsuccessful due to density and nature of its body composition. More invasive procedures were suggested but ultimately rejected concerning the scp's recovery posibility.

Blood sample testing is positive. Initial extraction attempts resulted in critical failure (see test log 1) . Recently extracted blood appears as translucent and viscous, but quickly turning red and hard upon making contact with oxygen. (on 100 ccl of blood taken from the entity on low O2 concentrations by a reinforced extractor) it was discovered a saline-like dilution composed by Mercury, with 15 previously unknown proteins conformed by complex silice compounds ebbed in the substance.

Exposure to high concentrations of air for extended periods of time threaten's SCP-xxx. While still able to breathe, its body will begin excreting quantities of SiO conclusive with the amount of Oxygen it has intaken. This event was first reported during its initial recovery, and once more during incident SCP-xxxx A2 (failure of airlock)). In both cases, the entity was subjected to great distress as it tried to expunge the resulting residue off of its breathing system, presenting analogue symptoms of an asthma attack.

SCP-xxxx is generally non violent, and not hostile towards Foundation staff, often displaying certain easiness towards its handling team. However, new staff entering it’s containment cell prior to being introduced will cause scpxxxx to become agitated and show signs of weariness and distress towards the violation of his space.. (See special containment procedures for appropriate protocol)

SCP-xxx is capable of vocalizing, but refuses to do so after its recovery incident left 4 MTF with severe hearing trauma and 1 [REDACTED]. After testing conducted in a sound-dampener test chamber, more insight into the scp was procured (See Addendum #3)

SCP-xxx is novice in thaumaturgy. When trying to communicate, SCP-xxxx alters the immediate air surrounding it, inducing the formation of sigils. Whether this ability was already latent on the SCP or if it was developed as an adaptation to its containment is currently under investigation, and potential risk is yet to be determined.

These sigils, hereby designated SCP-xxxx-1, are anomalous themselves. Despite being two-dimensional, they will always be facing the observer regardless of their position or number. SCP-XXXX-1 will remain in the position they were created and glow a between 15 and 30 seconds before disappearing. Despite an increase in lumens during this event, no change in temperature nor humen was detected during testing at any point, disproving the former theory of SCP-XXX being a reality bender.

SCP-xxxx-1 always presents the same structure: 3 thaumaturgic symbols arranged in a thaumaturgic triangle, following an as of now mostly unknown (sarkik/thaumaturge) language.

Director of XenoZoology and Thaumaturgy Dr. Daniel Bosnau has been working on a temporary lexicon ever since iSCP-XXXX's retrieval. But due to the complexity of the iconographics SCP-xxxx creates and their tendency to change, it's been deemed to score 76% accuracy.

SCP-xxxx began creating SCP-xxxx-1 as means to communicate with Foundation personnel. This conscious act of sentience and adaptation in pursuit of communication led to a revision of its containment procedures and the installation of a reinforced window.

Following Interviews has shown SCP-xxxx to display an average IQ of 110, as well as a curious behaviour and an empathetic emotional pattern, showing interest in common human items.

Addendum xxxx-01

Recovery

Addendum xxxx-02

Initial Behaviour

Addendum XXXXX-03

Interview-log xxxx-1:

Addendum xxxx-04:

Interview-log xxxx-2:

Addendum xxxx-5:

Interview-log xxxx-3: