LucasBlue's First SCP

So, this is my first SCP idea. I'm kind of new in writing, and English isn't my main language. If I spell something wrong, please correct me. I accept any kind of critique, but please try not to be rude.

Item #: SCP-XXXX

Object Class: Keter

Special Containment Procedures: SCP-XXXX is to be contained in a 12 m x 12 m x 4 m room, with walls of reinforced concrete. Access to SCP-XXXX requires authorization of a Level 4 personnel. The object is to be monitored every 30 minutes via infrared cameras.
SCP-XXXX was been observed glowing and [DATA REDACTED]. In these cases, the effects are to be ignored and no testing on SCP-XXXX should be done for 24 hours five security personnel are to enter SCP-XXXX's cell and guard it until the anomalous effect is over and for more 24 hours (see Incident Report SCP-XXXX-B).

Description: SCP-XXXX is an indigo crystal with approximately 2.3 meters high and 1.2 meter length. It's appearance resembles an quartz crystal. However, it is yet unknown what the object is made of.
Subjects are to bring a small full-duplex two-way radio with them. The object's anomalous effect occurs when subject touch it directly or while in direct contact with the object touching it. After touching SCP-XXXX, the subject enters a state of coma, all attempts of trying to wake subject from coma were unsuccessful and are to be discontinued (see Incident Report SCP-XXXX-A). After that, subjects report seeing crystal just before falling into a dark dimension with a black and purple substance on the ground, designated SCP-XXXX-1. All attempts to recover any of the substances from this dimensions were unsuccessful.
Subjects also report seeing huge humanoids, that have a crystal texture skin and three red, blue or green crystal eyes. They are instructed to not interact with these entities, which have been denominated SCP-XXXX-2, because of danger of these entities. As well as a giant purple structure, with a giant crystal, reported to be about 3 times bigger, nominated SCP-XXXX-3.
Until now, the only way known of leaving SCP-XXXX-1 is throwing the ground substance into the air or touching SCP-XXXX-3. After that, subject will wake up from the coma. No long brain damage from the coma were detected, whoever it is recommended that no subject stay more than 10 hours on SCP-XXXX-1.

Addendum: No direct physical contact with subject while in coma should happen unless necessary. Beside that, subject must be guarded every time, including while hospitalized.

Test Log XXXX-A

Subject: D-XXXX-01
Test: D-XXXX-01 was instructed to touch SCP-XXXX and report if he started to see, hear of feel anything different. After touching SCP-XXXX, subject instantly fell to the floor, completely paralyzed. He was then taken to the medical room, it was found he was on coma. 57 minutes after subject touched SCP-XXXX, he woke up from the coma feeling anxious. After subject D-XXXX-01 calmed down, he was asked what happened to him. He reported travelling to SCP-XXXX-1, which was dark and quiet. Subject reported he could feel hands touching him, what was believed to be an effect of being at the dimension. D-XXXX-01 reported walking next to some crystal houses and watching a SCP-XXXX-2. He followed the entity, but eventually lost it from sight. He was then noticed by another SCP-XXXX-2, which followed him. The subject reported that the humanoid entity was faster than a normal human, what made SCP-XXXX-2 quickly approximate subject. In an attempt to blind SCP-XXXX-2, subject threw the substance on the floor at the entity's eyes. Subject reported waking up in the medical room.
Notes: Maybe we could get some samples of this substance, so we could study more about this dimension and the SCP-XXXX itself. - Dr. Lucas

Test Log XXXX-B

Subject: D-XXXX-02
Test D-XXXX-02 received a small sandbag and was instructed to collect any strange substance, throw the substance on ground at the entities if followed by them and to touch SCP-XXXX. The subject shared the same symptoms as before. He was also taken to the medical room, however he woke up 21 minutes after touching SCP-XXXX. Subject reported being at a village in SCP-XXXX-1. The subject reported asking if anyone could hear him, however, the medics said that he showed no D-XXXX-02 didn't motion while in coma. Subject reported collecting some samples of the ground substance of SCP-XXXX-1 and then went to a small house made of crystals. D-XXXX-02 entered the house and explored it for a while, but later on heard the door opening and closing. While trying to escape the house, he was noticed by two SCP-XXXX-2. After attempting to escape from the two SCP-XXXX-2, subject said he then threw the substance on them, waking up from the coma after that. After seeing the samples brought by subject, it was found out that it was just ash. Subject said that the texture and color of the substance wasn't like the ash he brought.
Notes: Apparently, it is impossible to bring samples from SCP-XXXX, but I think we should keep trying. Also, what if it is possible to communicate with the subjects while they are in SCP-XXXX-1? Maybe a dumb idea, but maybe a good suggestion? - Dr. Lucas

Test Log XXXX-C

Subject: D-XXXX-03
Test: D-XXXX-03 received a small sandbag and a small full-duplex two-way radio and instructed all that he had to do. The same symptoms have been observed. When tried to contact D-XXXX-03 in SCP-XXXX-1, he replied. It was been noticed that subject's mouth didn't moved while he talked. While being taken to the medical room, subject reported feeling hands touching him. He then continued to explore SCP-XXXX-1, after 34 minutes of exploration, he saw a group of 4 SCP-XXXX-2. Subject followed them for 5 minutes, finally finding their destination, a giant structure. Subject described it as an round object too long for walking around it in less than hours or maybe a day. It had a crystal texture and dark color. After entering the structure, subject said he was still following the group. However, 3 minutes later, he said that was been seen. D-XXXX-03 immediately threw the sand at the air and woke up from the coma. The samples of the substance were identified again as ash.
Notes: So the full-duplex two-way radio works just as expected. And this thing of "giant structure" sounds interesting. Maybe we could research more about it? - Dr. Lucas

Test Log XXXX-D | Incident Report XXXX-A

LEVEL 4 CLEARENCE IS REQUIRED

+ Please input security credentials.

Subject: D-XXXX-04
Test: D-XXXX-04 received a small sandbag, which was found out to be torn, and a small full-duplex two-way radio. When subject was in SCP-XXXX-1, he got some of the substance, which eventually fell from the sandbag. Subject followed a group of SCP-XXXX-2 to find the giant structure. Subject followed them for 17 minutes, only stopping when seeing a signs with weird symbols on it pointing to the from. After passing by some rooms, D-XXXX-04 reported seeing a light coming from a room. When he get in there to investigate, he saw a giant crystal, which is now denominated SCP-XXXX-3, being guarded by a group of SCP-XXXX-2. Subject noticed that some pieces where missing in the crystal, like they have been removed. It is possible that [DATA REDACTED]. The subject was then noticed by other SCP-XXXX-2, which followed him. D-XXXX-04 searched for the substance in the sandbag, but then noticed it was torn. Subject tried to escape SCP-XXXX-2 the longest he could while the medics were trying to wake him up. However, the subject wasn't waking up, but feeling the effects inside SCP-XXXX-1. The many attempts eventually made D-XXXX-04 to pass out, as it is possible to confirm from hearing he falling to the ground. It was heard steps and growls probably made by the SCP-XXXX-2. They were heard until the connection with the radio was gone. At this moment, crystals and [DATA EXPUNGED] started to grow on and in D-XXXX-04's body. The crystals resembles SCP-XXXX, however, they don't have the anomalous effect of SCP-XXXX. Researches are being made to find out the crystals composition, as well of the [DATA EXPUNGED]
Notes: This was a tragedy. However, by the other side, it may be a great opportunity to find more out about this object. - Dr. Lucas

Test Log XXXX-E

Subject: D-XXXX-05, D-XXXX-06
Test: D-XXXX-05 and D-XXXX-06 were given small sandbags, small full-duplex two-way radios and small mining tools. They followed a group of SCP-XXXX-2, found the giant structure and found SCP-XXXX-3. While D-XXXX-06 distracted the group of SCP-XXXX-2, D-XXXX-05 ran at SCP-XXXX-3. After trying to mine SCP-XXXX-3, D-XXXX-05 woke up from the coma. After that, D-XXXX-06 was told to leave SCP-XXXX-1. After doing so, he woke up. Both haven't suffered any long brain damage.
Notes: Apparently, it is not possible to mine SCP-XXXX-3. But it seems like we found a new exit from SCP-XXXX-1? Anyway, we should be careful with SCP-XXXX. - Dr. Lucas

Incident Report XXXX-B

LEVEL 4 CLEARENCE IS REQUIRED

+ Please input security credentials.

Date: ██/██/████
Description:** At 2:21:32 PM, SCP-XXXX starts to show it anomalous effect. It is ignored.
At 2:23:17 PM, SCP-XXXX starts to glow more than usual. At this moment, some security people get suspicious, but don't do anything.
At 2:29:41 PM, SCP-XXXX starts to [DATA EXPUNGED].
At 2:30:41 PM, SCP-XXXX opens a [DATA REDACTED] which brings two SCP-XXXX-2 and a [DATA EXPUNGED]. Two security guards are called to stop the breach.
At 2:32:18, the two security guards died, and reinforcements were called. The entities killed everyone who they could touch.
At 2:41:27, the entities were finally killed. But the bodies of the SCP-XXXX-2 evaporated, while the [DATA REDACTED].
Notes: Alright, this was a catastrophe that could have been avoided if we were more careful. I am changing the containment procedures so this wont happen again. - O5-██